US4348382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dentifrice composition
Assignee: Colgate Palmolive Co
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Filing: 1981-10-19
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Granted: 1982-09-07
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Expires: 2001-10-19
Abstract
Abstract Dentifrice composition comprising sodium monofluorophosphate and compatible polishing material, at least a major portion of which is dicalcium phosphate dihydrate having a particle size such that all particles are above 3 microns in size at at least 65% of the particles are about 3-10 microns in size.
Inventors
- 👤 Robert C. Pierce
- 👤 Robert L. Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:26
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/24
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
67 words
A dentifrice composition with improved soluble fluorine retention comprising about 0.05% to about 7.6% by weight of sodium monofluorophosphate and about 20-99% by weight of a compatible polishing material, at least a major portion of which is dicalcium phosphate dihydrate having a particle size such that all particles are above 3 microns in size and at least about 65% of the particles are 3-10 microns in size.
Claim 2
Dependent Claim
67 words
A dentifrice composition with improved soluble fluorine retention comprising about 0.05% to about 7.6% by weight of sodium monofluorophosphate and about 20-99% by weight of a compatible polishing material, at least a major portion of which is dicalcium phosphate dihydrate having a particle size such that all particles are above 3 microns in size and at least about 65% of the particles are 3-10 microns in size.
Claim 3
Dependent Claim
20 words
The dentifrice composition of claim 1 wherein dicalcium phosphate dihydrate is the only polishing agent introduced into said dentifrice composition.
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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) | 1985-09-06 | 1986-03-08 | 1986-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-06 | 1990-03-08 | 1990-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-06 | 1994-03-08 | 1994-09-07 | $7700.00 | Window Closed / Lapsed |