US2876167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluoride dentifrice stabilized by a water-soluble acid phosphate compound
Assignee: Colgate Palmolive Co
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Filing: 1955-11-22
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Granted: 1959-03-03
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Expires: 1975-11-22
Abstract
No abstract record available.
Inventors
- 👤 Manahan Roderick David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:44
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/44; A61K8/19; A61K8/24; A61Q; A61Q11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A DENTIFRICE PREPARATION COMPRISING ABOUT 0.05 TO 1% BY WEIGHT OF A WATER-SOLUBLE FLUORIDE COMPOUND, AT LEAST ABOUT 20% BY WEIGHT OF A WATER INSOLUBLE CALCIUM POLYPHOSPHATE POLISH AGENT, AND ABOUT 0.1 TO 5% BY WEIGHT OF A WATER-SOLUBLE INORGANIC ACID POLYPHOSPHATE SALT SELECTED FROM THE GROUP CONSISTING OF THE PARTIAL ALKALI METAL AND AMMONIUM SALTS OF PYROPHOSPHORIC, TRI POLYPHOSPHORIC, AND TETRAPHOSPHORIC ACIDS.
Claim 2
Dependent Claim
63 words
A DENTIFRICE PREPARATION COMPRISING ABOUT 0.05 TO 1% BY WEIGHT OF A WATER-SOLUBLE FLUORIDE COMPOUND, AT LEAST ABOUT 20% BY WEIGHT OF A WATER INSOLUBLE CALCIUM POLYPHOSPHATE POLISH AGENT, AND ABOUT 0.1 TO 5% BY WEIGHT OF A WATER-SOLUBLE INORGANIC ACID POLYPHOSPHATE SALT SELECTED FROM THE GROUP CONSISTING OF THE PARTIAL ALKALI METAL AND AMMONIUM SALTS OF PYROPHOSPHORIC, TRI POLYPHOSPHORIC, AND TETRAPHOSPHORIC ACIDS.
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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) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |