US3966901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dentifrice preparation
Assignee: Colgate Palmolive Co
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Filing: 1975-02-21
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Granted: 1976-06-29
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Expires: 1995-02-21
Abstract
Abstract The present invention relates to a dentifrice preparation containing a water-soluble monofluorophosphate and a polishing material containing at least a major proportion of dimagnesium orthophosphate.
Inventors
- 👤 Douglas Charles Cullum
- 👤 Joan Collinge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:16
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/24
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
40 words
A dental cream preparation comprising a water-soluble alkali metal monofluorophosphate in amount to provide about 0.01-1% by weight of fluorine and about 20-99% by weight of compatible polishing material at least a major part of which is dimagnesium orthophosphate trihydrate.
Claim 2
Dependent Claim
40 words
A dental cream preparation comprising a water-soluble alkali metal monofluorophosphate in amount to provide about 0.01-1% by weight of fluorine and about 20-99% by weight of compatible polishing material at least a major part of which is dimagnesium orthophosphate trihydrate.
Claim 3
Dependent Claim
22 words
The preparation claimed in claim 1 wherein said monofluorophosphate is sodium monofluorophosphate which is present in amount of about 0.05-7.6% by weight.
Claim 4
Dependent Claim
17 words
The dental cream preparation claimed in claim 1 wherein said preparation is in a collapsible aluminum tube.
Claim 5
Dependent Claim
54 words
The dental cream preparation claimed in claim 1 wherein said polishing material consists essentially of dimagnesium orthophosphate trihydrate and a carbonate selected from the group consisting of calcium carbonate and magnesium carbonate, the ratio of said dimagnesium orthophosphate trihydrate to said carbonate being in the range of about 99:1 to about 65:35 by weight.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |