Suche Bilder Maps Play YouTube News Gmail Drive Mehr »
Anmelden
Nutzer von Screenreadern: Klicke auf diesen Link, um die Bedienungshilfen zu aktivieren. Dieser Modus bietet die gleichen Grundfunktionen, funktioniert aber besser mit deinem Reader.

Patentsuche

  1. Erweiterte Patentsuche
VeröffentlichungsnummerWO1999005987 A1
PublikationstypAnmeldung
AnmeldenummerPCT/US1997/013570
Veröffentlichungsdatum11. Febr. 1999
Eingetragen31. Juli 1997
Prioritätsdatum31. Juli 1997
VeröffentlichungsnummerPCT/1997/13570, PCT/US/1997/013570, PCT/US/1997/13570, PCT/US/97/013570, PCT/US/97/13570, PCT/US1997/013570, PCT/US1997/13570, PCT/US1997013570, PCT/US199713570, PCT/US97/013570, PCT/US97/13570, PCT/US97013570, PCT/US9713570, WO 1999/005987 A1, WO 1999005987 A1, WO 1999005987A1, WO 9905987 A1, WO 9905987A1, WO-A1-1999005987, WO-A1-9905987, WO1999/005987A1, WO1999005987 A1, WO1999005987A1, WO9905987 A1, WO9905987A1
ErfinderMichael R. Anderson
AntragstellerAnderson Michael R
Zitat exportierenBiBTeX, EndNote, RefMan
Externe Links:  Patentscope, Espacenet
Tooth whitening system
WO 1999005987 A1
Zusammenfassung
The invention includes a tooth whitening elongated member and method for using the member along with other apparatus and compounds. The member comprises a hermetically sealed frangible container holding a tooth whitening solution. The frangible container is enclosed in a flexible vial with a closed end and an open end. The open end of the vial contains wicking applicator material. A safety sleeve may be provided. The applicator material is applied to the teeth to whiten them. The teeth are then rinsed. The next step in the whitening process involves applying a polishing compound using a portable hand-held polishing machine which includes a rotary polishing tip. After polishing is completed, the polishing tip is removed from the polishing machine and cleaned with water. The polishing machine is then dried and the polishing tip reinstalled. The whitening solution, polishing compound, and rinsing solution may include stabilized oxygen and colostrum.
Ansprüche  (OCR-Text kann Fehler enthalten)
1. A tooth whitening elongated member comprising:
a frangible, hermetically closed container; a tooth whitening solution disposed within said container; an elongated flexible vial having an open first end and a closed second end;
said container being disposed within said vial; and
wicking applicator material disposed within said open first end of said vial and extending axially out from said first end.
2. A tooth whitening elongated member as described in Claim 1, further comprising:
a safety sleeve having an open first end and a closed second end; said sleeve being sized to fit closely and slidably over said vial; and
said vial being removably disposed within said sleeve in a first position
whereby the first end of the vial is inserted in the sleeve with its applicator material adjacent the closed end of the sleeve; and when the vial is withdrawn from the sleeve with the applicator material being disposed below the closed
end of the vial, and the vial is squeezed the container is ruptured to permit the
solution to flow into the applicator material in the first end of the vial for
application to a person's teeth to whiten them.
3. A tooth whitening elongated member as described in Claim 1, wherein said vial is disposed within said sleeve in a second position so that said applicator and said open first end extend axially outward from said sleeve, thereby further protecting a person's fingers while rupturing the container.
4. A tooth whitening elongated member as described in Claim 1 wherein said frangible, hermetically closed container is in the form of a glass ampoule.
5. A tooth whitening elongated member as described in Claim 1 wherein said vial is in the form of a flexible tube with an open first end and a closed second end.
6. A tooth whitening elongated member as described in Claim 1 wherein said tooth whitening solution comprises a solution of hydrogen peroxide; water with stabilized oxygen; flavoring; sodium saccharin; poloxmer 407; and colostrum.
7. A method for whitening teeth comprising the following steps:
providing a tooth whitening elongated member as described in Claim 1;
holding said tooth whitening elongated member so that said applicator
material extends below said closed second end of said vial; applying sufficient pressure to said vial so that said frangible container is broken and said whitening solution is released and flows downward into said applicator material; waiting until said whitening solution has saturated said applicator material; rubbing said applicator material on teeth to apply said whitening solution thereto; and rinsing teeth.
8. The method for whitening teeth as described in Claim 7 wherein the teeth are rinsed with a solution comprising hydrogen peroxide; water; Polysorbate20; xylitol; flaror; Acesulfame K; polaxamer 407; sodium benzoate; potassium sorbitol; PPG26 Buteth 26/Peg 40; hydrogenated castorn oil; stabilized oxygen; and colostrum.
9. The method for whitening teeth as described in Claim 7, further comprising the following step:
providing said safety sleeve with said vial being disposed within said sleeve in said first position;
sliding said sleeve off of said vial;
placing said vial into said sleeve in said second position so that said
applicator material and said open first end of said vial extend axially outward from said sleeve, thereby further protecting a person's fingers while rupturing the container.
10. A method for whitening teeth as described in Claim 7, further comprising the
following steps: providing a polishing machine; said polishing machine including a mandrel; a means of providing
torque to said mandrel; a power supply for said means; a handle for positioning said mandrel; and a switch for controlling said means; providing a deformable polishing tip frictionally fitted to said mandrel; providing tooth polishing compound; applying said polishing compound to said polishing tip; applying said polishing tip to teeth while closing said switch; moving said polishing tip back and forth gently over teeth; reapplying said polishing compound to said polishing tip as required; and rinsing teeth.
11. The method for whitening teeth as described in Claim 10 wherein the teeth are rinsed with a solution comprising hydrogen peroxide; water; Polysorbate20; xylitol;
flaror; Acesulfame K; polaxamer 407; sodium benzoate; potassium sorbitol; PPG26
Buteth 26/Peg 40; hydrogenated castorn oil; stabilized oxygen; and colostrum.
12. A method for whitening teeth as described in Claim 10, further comprising the
following steps:
removing said polishing tip from said polishing machine; washing said polishing tip with water; drying said mandrel of said polishing machine; and
replacing said polishing tip on said mandrel.
13. The method for whitening teeth as described in Claim 10, further comprising the following steps: providing said tooth polishing compound in individual application
packages;
breaking open one of said application packages; and squeezing said application package to eject said polishing compound.
14. The method for whitening teeth as described in Claim 10, further comprising the following step:
providing a polishing compound comprising water; sodium lauryl
sulfate; pumice; "Carbomer Ultra" (carbomer); polysorbate 20; "T.E. A." (triethanolamine); sodium saccharin; flavoring; sodium benzoate; calcium
disodium EDTA; stabilized oxygen; and colostrum.
AMENDED CLAIMS
[received by the International Bureau on 15 September 1998 (15.09.98); original claims 1,2,7 and 9 replaced by new claims 1 and 7; remaining claims unchanged
(5 pages)]
1. A tooth whitening elongated member comprising:
a frangible, hermetically closed container;
5 a tooth whitening solution disposed within said container;
an elongated flexible vial having an open first end and a closed
second end;
said container being disposed within said vial;
wicking applicator material disposed within said open first end of said
10 vial and extending axially out from said first end;
a safety sleeve having an open first end and a closed second end;
said sleeve being sized to fit closely and slidably over said vial; and
said vial being removably disposed within said sleeve in a first
position whereby the first end of the vial is inserted in the
15 sleeve with its applicator material adjacent the closed end of
the sleeve; and when the vial is withdrawn from the sleeve
with the applicator material being disposed below the closed
end of the vial, and the vial is squeezed the container is
ruptured to permit the solution to flow into the applicator
20 material in the first end of the vial for application to a person's
teeth to whiten them.
3. A tooth whitening elongated member as described in Claim 1 , wherein said
vial is disposed within said sleeve in a second position so that said applicator and said open first end extend axially outward from said sleeve, thereby
further protecting a person's fingers while rupturing the container.
4. A tooth whitening elongated member as described in Claim" 1 wherein said
frangible, hermetically closed container is in the form of a glass ampoule.
5. A tooth whitening elongated member as described in Claim 1 wherein said
vial is in the form of a flexible tube with an open first end and a closed
second end.
6. A tooth whitening elongated member as described in Claim 1 wherein said
tooth whitening solution comprises a solution of hydrogen peroxide; water
with stabilized oxygen; flavoring; sodium saccharin; poloxmer 407; and
colostrum.
7. A method for whitening teeth comprising the following steps:
providing a tooth whitening elongated member as described in Claim
i; providing a safety sleeve with said vial being disposed within said
sleeve in said first position;
sliding said sleeve off of said vial;
placing said vial into said sleeve in said second position so that said
applicator material and said open first end of said vial extend axially outward from said sleeve, thereby further protecting a
person's fingers while rupturing the container,
holding said tooth whitening elongated member so that said applicator
material extends below said closed second end of said vial;
applying sufficient pressure to said vial so that said frangible
container is broken and said whitening solution is released and
flows downward into said applicator material;
waiting until said whitening solution has saturated said applicator
material;
rubbing said applicator material on teeth to apply said whitening
solution thereto; and
rinsing teeth.
8. The method for whitening teeth as described in Claim 7 wherein the teeth are
rinsed with a solution comprising hydrogen peroxide; water; Polysorbate20;
xylitol; flaror; Acesulfame K; polaxamer 407; sodium benzoate; potassium
sorbitol; PPG26 Buteth 26/Peg 40; hydrogenated castorn oil; stabilized
oxygen; and colostrum.
10. A method for whitening teeth as described in Claim 7, further comprising the
following steps: providing a polishing machine; said polishing machine including a mandrel; a means of providing
torque to said mandrel; a power supply for said means; a
handle for positioning said mandrel; and a switch for
controlling said means;
providing a deformable polishing tip frictionally fitted to said
mandrel;
providing tooth polishing compound;
applying said polishing compound to said polishing tip;
applying said polishing tip to teeth while closing said switch;
moving said polishing tip back and forth gently over teeth;
reapplying said polishing compound to said polishing tip as required;
and
rinsing teeth.
11. The method for whitening teeth as described in Claim 10 wherein the teeth
are rinsed with a solution comprising hydrogen peroxide; water;
Polysorbate20; xylitol; flaror; Acesulfame K; polaxamer 407; sodium
benzoate; potassium sorbitol; PPG26 Buteth 26/Peg 40; hydrogenated castorn
oil; stabilized oxygen; and colostrum.
12. A method for whitening teeth as described in Claim 10, further comprising
the following steps:
removing said polishing tip from said polishing machine; washing said polishing tip with water;
drying said mandrel of said polishing machine; and
replacing said polishing tip on said mandrel.
13. The method for whitening teeth as described in Claim 10, further comprising
the following steps:
providing said tooth polishing compound in individual application
packages;
breaking open one of said application packages; and
squeezing said application package to eject said polishing compound.
14. The method for whitening teeth as described in Claim 10, further comprising
the following step:
providing a polishing compound comprising water; sodium lauryl
sulfate; pumice; "Carbomer Ultra" (carbomer); polysorbate 20;
"T.E.A." (triethanolamine); sodium saccharin; flavoring;
sodium benzoate; calcium disodium EDTA; stabilized oxygen;
and colostrum.
STATEMENT UNDER ARTICLE 19
Claims 1 and 2 have been combined into amended claim 1. This combination adds the element of a safety sleeve to the elongated flexible vial of the tooth whitening elongated member. Thus the present invention may be distinguished over the disposable applicator for nail polish or other liquid disclosed in Chernack (PCT/US84/00363) and cited by the Authorized Officer as relevant to claims 1, 2, 4, 5 and 7. Likewise, claims 7 and 9 have been combined into amended claim 7 to include the method of utilizing the safety sleeve with the tooth whitening elongated member. As claims 4 and 5 now depend from amended claim 1, the Authorized Officer's assertion of relevance should now be obviated.
As Wagner (U.S. Patent No. 5,611,687) cited by the Authorized Officer as relevant to claims 1, 2, 4, 5 and 7 includes "means for drawing the oral hygiene preparation to the applicator tip by capillary action." (claim 1, lines 44-46), and as this element is missing from the present invention, Applicant feels that no amendment is necessary to avoid Wagner.
Beschreibung  (OCR-Text kann Fehler enthalten)

TOOTH WHITENING SYSTEM Related Applications

This application includes the use of novel compounds, the details of which are fully described in pending application Serial No. 08/863,419, the contents of which are herein specifically incorporated by reference.

Field of Invention

The invention applies to the field of dental care; more particularly to systems and devices designed to enhance the whiteness and reflective quality of human teeth.

Background of the Invention It has long been recognized that tooth color is a significant factor in facial appearance. The common perception is that a whiter or brighter tooth color enhances the effect of smiling and generally leads to a more attractive appearance. Periodic professional dental cleaning and polishing has been routinely used to enhance the

whiteness of teeth. This process, while effective, is far too costly and time consuming

to be used on a regular basis.

Other methods used to enhance tooth whiteness include replacing outer tooth

surfaces with crowns or veneers. While such procedures enhance tooth whiteness

substantially, they are extremely expensive and tend to be more prone to breakage than unsurfaced teeth. Teeth have also been bleached to improve whiteness.

Bleaching systems are provided by dentists and are available for home use as well. While bleaching systems are also effective, they involve the oral use of strong

chemicals which may have toxic side effects.

What is needed is a tooth whitening system which is safe, effective, convenient and low cost. To date, none of the prior art inventions have achieved all of these objectives.

Summary of the Invention

The present invention addresses all of the desired features for a tooth whitening system identified as lacking in any single invention of the prior art. The invention adapts some of the mechanical technology long employed by dentists to provide safe and effective tooth whitening. At the same time the invention avoids the use of strong chemicals while providing an easy to use, low cost system which can be used in any convenient location.

The present invention includes a novel tooth whitening elongated member and

methods for using the tooth whitening elongated member and other apparatus and

compounds. The tooth whitening elongated member can be constructed from five

components. These components include a frangible, hermetically sealed container, a tooth whitening solution disposed within the container and a flexible vial having an

open first end and a closed second end. The frangible container is located inside of

the vial which has wicking applicator material in the open first end of the vial and extending axially out of the vial. When the vial is held with the applicator material

positioned below the closed end of the vial and the vial is squeezed to rupture the container the solution flows into the applicator material in the first end of the vial and

the applicator material may be applied to a person's teeth to whiten them.

In a variant of the invention a safety sleeve is provided having an open first end and a closed second end is sized to fit closely and slidably over the vial. When the first end of the vial is removably placed in the sleeve in a first position the applicator

material is adjacent the closed second end of the sleeve. When the vial is placed in the safety sleeve in a second position the applicator material and the open first end extend

axially outward from the safety sleeve, thereby further protecting a person's fingers

while rupturing the container. In another variant of the present invention the frangible, hermetically closed container is in the form of a glass ampoule. In yet another variant, the vial is in the form of a flexible tube with an open first end and a closed second end. In yet another

variant the tooth whitening solution comprises a solution of colostrum, hydrogen peroxide, water with stabilized oxygen, flavoring, sodium saccharin and Poloxmer

407.

The method for whitening teeth includes the use of the tooth whitening elongated member as described above and a series of other steps. First, the tooth

whitening elongated member is positioned so that the applicator material extends

below the closed second end of the vial and sufficient pressure is applied to the vial so that the frangible container is broken and the whitening solution is released and flows

downward into the applicator material. After waiting until the whitening solution to saturate the applicator material the applicator material is rubbed on the teeth to apply the whitening solution to them. Next the teeth are rinsed and the polishing phase of the method is begun.

In a variant of the invention the teeth are rinsed with a solution comprising hydrogen peroxide; water; polysorbate 20; xylitol; flaror; acesulfame K; polaxamer

407; sodium benzoate; potassium sorbitol; PPG26 Buteth 26/Peg 40; hydrogenated castorn oil; stabilized oxygen; and colostrum.

In another variant of the invention the tooth whitening elongated member is provided with the vial placed in the safety sleeve in a first position. Next, the sleeve is removed from the vial and the vial squeezed to rupture the container. In another variant of the method of the present invention the vial is placed into the sleeve in a second position so that the applicator material and the open first end of the vial extend axially outward from the safety sleeve so that the fingers of the user are further

protected when the container is ruptured..

A polishing machine is provided which includes a mandrel; a means of

providing torque to the mandrel; a power supply for the means; a handle for

positioning the mandrel; and a switch for controlling the means. A deformable

polishing tip frictionally fitted to the mandrel is provided along with tooth polishing

compound. The polishing compound is applied to the polishing tip. The polishing tip is applied to teeth while closing the switch and moving the polishing tip back and

forth gently over teeth. Polishing compound is reapplied to the polishing tip as

required. Next the teeth are rinsed.

As maintenance for the polishing machine and polishing tip, the polishing tip is

next removed from the polishing machine and the polishing tip is washed with water. The mandrel of the polishing machine is then dried and the polishing tip is replaced on the mandrel.

As a variant on the method of the present invention the tooth polishing compound may be provided in individual application packages. These individual

packages are broken open and squeezed to eject the polishing compound.

As a further variant, the method may be practiced by providing a polishing compound comprising water; sodium lauryl sulfate; pumice; Carbomer Ultra; Polysorbate 20; T.E.A.; sodium saccharin; flavoring; sodium benzoate; calcium

disodium EDTA; stabilized oxygen; and colostrum.

Brief Description of the Drawings

Figure 1 is a perspective side view of the tooth whitening elongated member

with the safety sleeve removed;

Figure 2 is a cross-sectional side view of the Figure 1 embodiment taken

along the line 2-2;

Figure 3 is a cross-sectional side view of the Figure 1 embodiment showing

the frangible container after squeezing taken along the line 2-2;

Figure 4 is a side view of the polishing machine with the polishing tip

removed;

Figure 5 is a side perspective view of the polishing tip; and Figure 6 is a plan view of the individual application packages of the polishing compound.

Detailed Description of the Preferred Embodiment

Figures 1, 2 and 3 illustrate the tooth whitening elongated member 10 which can be constructed from five components. These components include a frangible, hermetically sealed container 14, a tooth whitening solution disposed within the

container 18 and a flexible vial 22 having an open first end 26 and a closed second

end 30. The frangible container 18 is located inside of the vial 22 which has wicking applicator material 34 in the open first end 26 of the vial 22 and extending axially out

of the vial 22. A safety sleeve 38 having an open first end 42 and a closed second end

46 is sized to fit closely and slidably over the vial 22.

When the first end 26 of the vial 22 is removably placed in the sleeve 38 in a first position the applicator material 34 is adjacent the closed second end 46 of the

sleeve 38. When the vial 22 is withdrawn from the sleeve 38 with the applicator

material 34 being held below the closed end 30 of the vial 22 and the vial 22 is

squeezed to rupture the container 14 the solution 18 flows into the applicator material

34 in the first end 26 of the vial 22 and the applicator material 34 may be applied to a

person's teeth to whiten them.

When the vial 22 is placed in the safety sleeve 38 in a second position the

applicator material 34 and the open first end 26 extend axially outward from the

sleeve 38, thereby further protecting a person's fingers while rupturing the container 14 In a variant of the present invention the frangible, hermetically closed

container 14 is in the form of a glass ampoule. In another variant, the vial 22 is in the form of a flexible tube with an open first end 26 and a closed second end 30. In yet another variant the tooth whitening solution 18 comprises a solution of hydrogen peroxide; water with stabilized oxygen; flavoring; sodium saccharin; Poloxmer 407; and colostrum.

The method for whitening teeth includes the use of the tooth whitening

elongated member 10 as described above and a series of other steps. First, the tooth

whitening elongated member 10 is provided with the vial 22 placed in the safety sleeve 38 in a first position. Next, the sleeve 38 is removed from the vial 22. In a

variant of the method of the present invention the vial 22 is placed into the sleeve 38

in a second position so that the applicator material 34 and the open first end 26 of the

vial 22 extend axially outward from the sleeve 38.

The tooth whitening elongated member 10 is positioned so that the applicator

material 34 extends below the closed second end 30 of the vial 22 and sufficient

pressure is applied to the vial 22 so that the frangible container 14 is broken and the

whitening solution 18 is released and flows downward into the applicator material 34

(See Figure 3). After waiting until the whitening solution 18 becomes visible on the

applicator material 34, the applicator material 34 is rubbed on the teeth to apply the

whitening solution 18 to them. Next the teeth are rinsed with a solution comprising hydrogen peroxide; water; polysorbate20; xylitol; flaror; acesulfame K; polaxamer 407; sodium benzoate; potassium sorbitol; PPG26 Buteth 26/Peg 40; hydrogenated

castorn oil; stabilized oxygen; and colostrum. Next, the polishing phase of the method is begun.

Figure 4 illustrates a polishing machine 50 which includes a mandrel 54; a means 58 of providing torque to the mandrel 54; a power supply 62 for the means; a handle 66 for positioning the mandrel 54; and a switch 70 for controlling the means

58. A deformable polishing tip 74 frictionally fitted to the mandrel 54 is provided

along with tooth polishing compound 78. The polishing compound 78 is applied to

the polishing tip 74. The polishing tip 74, which is further illustrated in Figure 5, is

applied to teeth while closing the switch 70 and moving the polishing tip 74 back and

forth gently over teeth. Polishing compound 78 is reapplied to the polishing tip 74 as required. Next the teeth are rinsed with a a solution comprising hydrogen peroxide;

water; polysorbate 20; xylitol; flaror; acesulfame K; polaxamer 407; sodium benzoate; potassium sorbitol; PPG26 Buteth 26/Peg 40; hydrogenated castorn oil; stabilized oxygen; and colostrum.

As maintenance for the polishing machine 50 and polishing tip 74, the

polishing tip 74 is next removed from the polishing machine 50 and the polishing tip

74 is washed with water. The mandrel 54 of the polishing machine 50 is then dried

and the polishing tip 74 is replaced on the mandrel 54.

Figure 6 illustrates a variant on the method of the present invention in which

the tooth polishing compound 78 may be provided in individual application packages

82. These individual packages 82 are broken open and squeezed to eject the polishing

compound 78.

As a further variant, the method may be practiced by providing a polishing

compound 78 comprising water; sodium lauryl sulfate; pumice; Carbomer Ultra;

Polysorbate 20; T.E.A.; sodium saccharin; flavoring; sodium benzoate; calcium disodium EDTA; stabilized oxygen; and colostrum.

Patentzitate
Zitiertes PatentEingetragen Veröffentlichungsdatum Antragsteller Titel
WO1984003862A1 *6. März 198411. Okt. 1984Milton P ChernackDisposable applicator
WO1985003632A1 *16. Febr. 198429. Aug. 1985Fattaleh John BPersonal health care device
WO1997004742A1 *17. Juli 199613. Febr. 1997The Procter & Gamble CompanyOral compositions
US4308252 *31. Okt. 197929. Dez. 1981Young Dental Mfg. Co.Dentifrice composition
US5208010 *27. Jan. 19924. Mai 1993Dental Concepts Inc.Tooth whitening dentifrice
US5611687 *6. Nov. 199518. März 1997Dental Concepts Inc.Oral hygiene delivery system
Referenziert von
Zitiert von PatentEingetragen Veröffentlichungsdatum Antragsteller Titel
WO2001062177A1 *31. Mai 200030. Aug. 20013M Innovative Properties CompanyPackaged applicator assembly
US641308724. Febr. 20002. Juli 20023M Innovative Properties CompanyPackaged applicator assembly
US892016818. Nov. 201330. Dez. 2014Colgate-Palmolive CompanyOral care implement having fluid delivery system
US916788630. Juli 201327. Okt. 2015Colgate-Palmolive CompanyOral care implement having fluid delivery system
US923779818. März 201319. Jan. 2016Colgate-Palmolive CompanyFluid dispensing oral care implement
US94027009. März 20112. Aug. 2016Colgate-Palmolive CompanyInterdental cleaning device
US95546417. Okt. 201331. Jan. 2017Colgate-Palmolive CompanyOral care implement
US96489438. Dez. 201516. Mai 2017Colgate-Palmolive CompanyFluid dispensing oral care implement
Klassifizierungen
Internationale KlassifikationA61K6/00, A61C17/00, A61C19/06, A61C5/00
UnternehmensklassifikationA61C19/063, A61C5/00, A61C17/005, A61C19/066
Europäische KlassifikationA61C19/06B1, A61K6/00, A61C19/06B, A61C5/00
Juristische Ereignisse
DatumCodeEreignisBeschreibung
11. Febr. 1999ALDesignated countries for regional patents
Kind code of ref document: A1
Designated state(s): GH KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG
11. Febr. 1999AKDesignated states
Kind code of ref document: A1
Designated state(s): AL AM AT AU AZ BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU IL IS JP KE KG KP KR KZ LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG US UZ VN
12. Mai 1999121Ep: the epo has been informed by wipo that ep was designated in this application
2. Dez. 1999REGReference to national code
Ref country code: DE
Ref legal event code: 8642
3. März 2000NENPNon-entry into the national phase in:
Ref country code: JP
Ref document number: 1999510870
Format of ref document f/p: F
31. März 2000NENPNon-entry into the national phase in:
Ref country code: CA
10. Mai 2000122Ep: pct application non-entry in european phase