US2818371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluoride-containing dentifrices
Assignee: STWB Inc
•
Filing: 1953-10-26
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Granted: 1957-12-31
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Expires: 1973-10-26
Abstract
No abstract record available.
Inventors
- 👤 George D Wessinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:15
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61K8/21; A61K8/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A THERAPAUTIC DENTIFRICE COMPRISING APPROXIMATELY 0.1-2.0% BY WEIGHT OF A WATER-SOLUBLE, INORGANIC FLORIDE AND ABOUT 25-95% BY WEIGHT OF MICROCYSTALLINE ALUMIMUM HYDROXIDE.
Claim 2
Dependent Claim
22 words
A THERAPAUTIC DENTIFRICE COMPRISING APPROXIMATELY 0.1-2.0% BY WEIGHT OF A WATER-SOLUBLE, INORGANIC FLORIDE AND ABOUT 25-95% BY WEIGHT OF MICROCYSTALLINE ALUMIMUM HYDROXIDE.
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) | 1960-12-30 | 1961-07-01 | 1961-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-30 | 1965-07-01 | 1965-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-30 | 1969-07-01 | 1969-12-31 | $7700.00 | Window Closed / Lapsed |