US2779708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dextran dentifrice preparations
Assignee: Colgate Palmolive Co
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Filing: 1953-02-18
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Granted: 1957-01-29
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Expires: 1973-02-18
Abstract
No abstract record available.
Inventors
- 👤 Russell Kenneth Lyman
- 👤 Jr Manno Fredrick Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:14
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/73; A61Q; A61Q11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A DENTIFRICE COMPOSITION COMPRISING AT LEAST ABOUT 20% BY WEIGHT OF WATER-INSOLUBLE POLISHING MATERIAL, AN ORGANIC DETERGENT, AND DEXTRAN IN AN AMOUNT FROM ABOUT 0.1 TO 10% BY WEIGHT AS AN ADDED CLEASING AGENT.
Claim 2
Dependent Claim
34 words
A DENTIFRICE COMPOSITION COMPRISING AT LEAST ABOUT 20% BY WEIGHT OF WATER-INSOLUBLE POLISHING MATERIAL, AN ORGANIC DETERGENT, AND DEXTRAN IN AN AMOUNT FROM ABOUT 0.1 TO 10% BY WEIGHT AS AN ADDED CLEASING AGENT.
References Cited (Backward Citations)
US2437519A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |