US3034967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluoride dentifrice with insoluble alkali metal metaphosphate and aluminum compound polishing material
Assignee: Colgate Palmolive Co
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Filing: 1956-05-29
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Granted: 1962-05-15
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Expires: 1976-05-29
Abstract
No abstract record available.
Inventors
- 👤 Apperson Lester Donald
- 👤 Bouchal Alexander Wayne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:24
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/24; A61K8/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A DENTIFRICE PREPARATION COMPRISING A FLUORIDE COMPOUND WHICH RELEASE FLUORIDE IONS IN WATER, AND AS A POLISHING MATERIAL A MIXTURE OF A MAJOR PROPORTION OF INSOLUBLE SODIUM METAPHOSPHATE WITH A MINOR PROPORTION OF AN ALUMINUM COMPOUND, SAID ALUMINUM COMPOUND INHIBITING THE DISSOLVING ACTION OF SAID INSOLUBLE SODIUM METAPHOSPHATE UPON CALCIUM-CONTAINING TOOTH-ENAMEL, SAID DENTIFRICE BEING FREE FROM CALCIUM SALTS AND SIMILAR MATERIALS WHICH TEND TO DIMINISH THE EFFECTIVENESS OF THE FLUORIDE COMPOUND.
Claim 2
Dependent Claim
71 words
A DENTIFRICE PREPARATION COMPRISING A FLUORIDE COMPOUND WHICH RELEASE FLUORIDE IONS IN WATER, AND AS A POLISHING MATERIAL A MIXTURE OF A MAJOR PROPORTION OF INSOLUBLE SODIUM METAPHOSPHATE WITH A MINOR PROPORTION OF AN ALUMINUM COMPOUND, SAID ALUMINUM COMPOUND INHIBITING THE DISSOLVING ACTION OF SAID INSOLUBLE SODIUM METAPHOSPHATE UPON CALCIUM-CONTAINING TOOTH-ENAMEL, SAID DENTIFRICE BEING FREE FROM CALCIUM SALTS AND SIMILAR MATERIALS WHICH TEND TO DIMINISH THE EFFECTIVENESS OF THE FLUORIDE COMPOUND.
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) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |