US3429963A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental preparation containing polymeric polyelectrolyte
Assignee: Colgate Palmolive Co
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Filing: 1964-06-09
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Granted: 1969-02-25
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Expires: 1984-06-09
Abstract
No abstract record available.
Inventors
- 👤 Leo Shedlovsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:37
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/81; A61K8/8164; A61K8/8188
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A DENTAL PREPARATION COMPRISING A WATER-INSOLUBLE POLISHING AGENT AND FROM ABOUT 1% TO ABOUT 8% BY WEIGHT OF SAID DENTAL PREPARATION OF AN AGENT CAPABLE OF COUNTERING ORAL CALCULUS, SAID AGENT BEING SUBSTANTIALLY LINEAR, POLYMERIC, WATER-SOLUBLE POLYELECTROLYTE SELECTED FROM THE GROUP CONSISTING OF A HYDROLZED COPOLYMER OF ETHYLENE AND MALEIC ACID HAVING AN AVERAGE MOLECULAR WEIGHT OF ABOUT 1,500 AND GREATER AND A POLYETHYLENE SULFONATE HAVING AN AVERAGE MOLECULAR WEIGHT OF ABOUT 10,000 AND GREATER; SAID AGENT BEING CHARACTERIZED BY AN APPARENT DISSOCIATION CONSTANT UPON COMPLEXING WITH CALCIUM (PKCA) WHERE --LOG KCA IS FROM ABOUT 2.2 TO ABOUT 4.5.
Claim 2
Dependent Claim
99 words
A DENTAL PREPARATION COMPRISING A WATER-INSOLUBLE POLISHING AGENT AND FROM ABOUT 1% TO ABOUT 8% BY WEIGHT OF SAID DENTAL PREPARATION OF AN AGENT CAPABLE OF COUNTERING ORAL CALCULUS, SAID AGENT BEING SUBSTANTIALLY LINEAR, POLYMERIC, WATER-SOLUBLE POLYELECTROLYTE SELECTED FROM THE GROUP CONSISTING OF A HYDROLZED COPOLYMER OF ETHYLENE AND MALEIC ACID HAVING AN AVERAGE MOLECULAR WEIGHT OF ABOUT 1,500 AND GREATER AND A POLYETHYLENE SULFONATE HAVING AN AVERAGE MOLECULAR WEIGHT OF ABOUT 10,000 AND GREATER; SAID AGENT BEING CHARACTERIZED BY AN APPARENT DISSOCIATION CONSTANT UPON COMPLEXING WITH CALCIUM (PKCA) WHERE --LOG KCA IS FROM ABOUT 2.2 TO ABOUT 4.5.
References Cited (Backward Citations)
US2798053A
Cited
US3132075A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |