US4482535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cosmetic preparation for teeth
Assignee: Individual
•
Filing: 1981-10-02
•
Granted: 1984-11-13
•
Expires: 2001-10-02
Abstract
Abstract The subject of the invention is a cosmetic preparation for teeth which is composed of one or more film-forming polymers--at least one of which is water soluble, partly soluble, emulsifiable or dispersible--and coloring agents. The composition ensures the aesthetic appearance of the teeth and can--by contrast with earlier products--be removed easily and rapidly.
Inventors
- 👤 Andras Sugar
- 👤 Laszlo Fabry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:08
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/80; A61K6/884; A61K6/887
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A method for improving the appearance of the teeth for only a brief period of time between several hours and several days which comprises the steps of: (a) applying to the surface of a tooth a cosmetic tooth composition which consists essentially of: (1) a first film-forming polymer, said film-forming polymer being emulsifiable and dispersible in water and consisting essentially of a methacrylic acid methyl ester-styrene mixture in a weight ratio of 90:10; (2) a second film-formng polymer, said second film-forming polymer being water-soluble and consisting essentially of polyvinyl alcohol wherein the weight ratio between the first and second film-forming polymer is 100:0.5; (3) a titanium dioxide coloring agent; and (4) a nontoxic solvent selected from the group consisting of water, ethanol, and mixtures thereof; (b) allowing the film layer to dry; and (c) drawing off the film layer without rubbing after said brief period of time has elapsed.
Claim 2
Independent Claim
149 words
A method for improving the appearance of the teeth for only a brief period of time between several hours and several days which comprises the steps of: (a) applying to the surface of a tooth a cosmetic tooth composition which consists essentially of: (1) a first film-forming polymer, said film-forming polymer being emulsifiable and dispersible in water and consisting essentially of a methacrylic acid methyl ester-styrene mixture in a weight ratio of 90:10; (2) a second film-formng polymer, said second film-forming polymer being water-soluble and consisting essentially of polyvinyl alcohol wherein the weight ratio between the first and second film-forming polymer is 100:0.5; (3) a titanium dioxide coloring agent; and (4) a nontoxic solvent selected from the group consisting of water, ethanol, and mixtures thereof; (b) allowing the film layer to dry; and (c) drawing off the film layer without rubbing after said brief period of time has elapsed.
References Cited (Backward Citations)
US3914405A
Cited
US3621079A
Cited
GB1309209A
Cited
GB1424034A
Cited
US4032627A
Cited
SU518218A1
Cited
US4102992A
Cited
US4134930A
Cited
US4150485A
Cited
US4226848A
Cited
US4250163A
Cited
US4362842A
Cited
US4360605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-11-13 | 1988-05-14 | 1988-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-13 | 1992-05-14 | 1992-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-13 | 1996-05-14 | 1996-11-13 | $7700.00 | Window Closed / Lapsed |