US2946725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dentifrice compositions
Assignee: Procter and Gamble Co
•
Filing: 1957-03-25
•
Granted: 1960-07-26
•
Expires: 1977-03-25
Abstract
No abstract record available.
Inventors
- 👤 Paul E Norris
- 👤 Henry C Schweizer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:55
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61K8/21; A61K8/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A DENTIFRICE CONTAINING A STANNOUS COMPOUND, SAID STANNOUS COMPOUND BEING DIFFICULTLY SOLUABLE BUT CAPABLE OF DISSOLVING TO SUPPLY AT LEAST 10 BUT NOT MORE THAN 1000 PARTS PER MILLION OF STANNOUS IONS WHEN IN ASSOCIATION WITH WATER, AND BEING PRESENT IN SAID DENTIFRICE IN AN AMOUNT SUFFICIENT TO PROVIDE SAID STANNOUS COMPOUND IN UNDISSOLVED AND UNDISSOCIATED FROM, SAID DENTIFRICE HAVING A PH OF FROM 3.5 TO 6.0.
Claim 2
Dependent Claim
67 words
A DENTIFRICE CONTAINING A STANNOUS COMPOUND, SAID STANNOUS COMPOUND BEING DIFFICULTLY SOLUABLE BUT CAPABLE OF DISSOLVING TO SUPPLY AT LEAST 10 BUT NOT MORE THAN 1000 PARTS PER MILLION OF STANNOUS IONS WHEN IN ASSOCIATION WITH WATER, AND BEING PRESENT IN SAID DENTIFRICE IN AN AMOUNT SUFFICIENT TO PROVIDE SAID STANNOUS COMPOUND IN UNDISSOLVED AND UNDISSOCIATED FROM, SAID DENTIFRICE HAVING A PH OF FROM 3.5 TO 6.0.
References Cited (Backward Citations)
US1467024A
Cited
GB654473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |