Patent US3692894A successfully refreshed from Google Patents.
US3692894A
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Dentifrice composition
Assignee: Kao Corp
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Filing: 1970-11-18
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Granted: 1972-09-19
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Expires: 1990-11-18
Abstract
Abstract The invention relates to a surfactant-containing dentifrice powder or paste having improved after-taste characteristics containing a polishing agent and from 0.7 to 2.8 percent by weight of a combination of alkyl sulfates constituting 0.2 to 1.0 percent decyl sulfate, 0 to 0.3 percent dodecyl sulfate, 0.2 to 0.5 percent tetradecyl sulfate and 0.1 to 1.0 percent of hexadecyl sulfate, said alkyl sulfates being present as alkali metal salts or alkanolamine salts.
Inventors
- 👤 Tadashi Amo
- 👤 Tuneo Nagasawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:40
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/46; A61K8/463; A61Q; A61Q11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A dentifrice according to claim 1 wherein the composition is a tooth paste.
Claim 2
Dependent Claim
13 words
A dentifrice according to claim 1 wherein the composition is a tooth powder.
References Cited (Backward Citations)
US2812284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |