US4264579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dentifrices
Assignee: Colgate Palmolive Co
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Filing: 1979-12-17
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Granted: 1981-04-28
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Expires: 1999-12-17
Abstract
Abstract An opaque extrudable toothpaste containing as the abrasive and/or polishing agent a major proportion of sodium aluminosilicate and a minor proportion of another abrasive which is wholly or predominantly a soft abrasive such as dicalcium phosphate, in a vehicle which is wholly or predominantly water.
Inventors
- 👤 John F. Carr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:38
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/26; A61Q; A61Q11/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
100 words
An opaque extrudable toothpaste comprised of about 50 to 90% by weight of a liquid vehicle at least about 60% of which is water and the remainder being humectant and about 10 to 50% by weight of an abrasive agent comprising about 5 to 20% by weight of the toothpaste of sodium aluminosilicate and about 5 to 30% by weight of the toothpaste of another soft water-insoluble dental abrasive selected from the group consisting of dicalcium phosphate, insoluble sodium metaphosphate and alumina trihydrate, the amount of said dicalcium phosphate when present being lower than the amount of said sodium aluminosilicate.
Claim 2
Dependent Claim
100 words
An opaque extrudable toothpaste comprised of about 50 to 90% by weight of a liquid vehicle at least about 60% of which is water and the remainder being humectant and about 10 to 50% by weight of an abrasive agent comprising about 5 to 20% by weight of the toothpaste of sodium aluminosilicate and about 5 to 30% by weight of the toothpaste of another soft water-insoluble dental abrasive selected from the group consisting of dicalcium phosphate, insoluble sodium metaphosphate and alumina trihydrate, the amount of said dicalcium phosphate when present being lower than the amount of said sodium aluminosilicate.
Claim 3
Dependent Claim
33 words
The toothpaste as claimed in claim 1 wherein said abrasive agent comprises about 15% by weight of the toothpaste of sodium aluminosilicate and about 10% by weight of the toothpaste of dicalcium phosphate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-04-27 | 1984-10-27 | 1985-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-27 | 1988-10-27 | 1989-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-27 | 1992-10-27 | 1993-04-28 | $7700.00 | Window Closed / Lapsed |