US3822345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dentifrice composition
Assignee: Colgate Palmolive Co
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Filing: 1971-08-25
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Granted: 1974-07-02
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Expires: 1991-08-25
Abstract
Abstract DENTIFRICE COMPOSITION CONTAINING A MONOFLUOROPHOSPHATE SALT AND AS A POLISHING MATERIAL AT LEAST A MAJOR AMOUNT OF FINE PARTICLE SIZE ALUMINA. PREFERABLY THE ALUMINA IS ALPHA ALUMINA TRIHYDRATE AND IS MIXED WITH INSOLUBLE ALKALI METAL METAPHOSPHATE, THE AMOUNT OF SAID ALUMINA BEING AT LEAST ABOUT EQUAL OF THE AMOUNT OF SAID ALKALI METAL METAPHOSPHATE. THIS DENTIFRICE RETAINS A DESIRABLE LEVEL OF SOLUBLE FLUORIDE UPON AGING.
Inventors
- 👤 L Murray
- 👤 G Salzmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:34
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61K8/21; A61K8/24; A61K8/26
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |