US2665218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental cements
Assignee: Individual
•
Filing: 1948-03-12
•
Granted: 1954-01-05
•
Expires: 1968-03-12
Abstract
No abstract record available.
Inventors
- 👤 Jacob A Saffir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:32
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/60; A61K6/69; A61K6/80; A61K6/849; A61K6/853; A61K6/864
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A COMPOSITION FOR DENTAL RESTORATIONS IN NATURAL TEETH CONSISTING SUBSTANTIALLY ENTIRELY OF A DENTAL CEMENT CONTAINING A NORMAL FLUORIDE EFFECTIVE FOR INHIBITING DENTAL CARIES FROM THE GROUP CONSISTING OF ALKALI METAL FLUORIDES, ALKALINE EARTH METAL FLUORIDES, CRYOLITE AND ZINC FLOURIDE IN THE APPROXIMATE CONCENTRATION RANGE OF 0.05% TO 20% BY WEIGHT, AND FLUORIDE BEING ADAPTED TO BECOME AVAILABLE UNDER THE CONDITIONS PREVAILING IN THE ORAL CAVITY.
Claim 2
Dependent Claim
66 words
A COMPOSITION FOR DENTAL RESTORATIONS IN NATURAL TEETH CONSISTING SUBSTANTIALLY ENTIRELY OF A DENTAL CEMENT CONTAINING A NORMAL FLUORIDE EFFECTIVE FOR INHIBITING DENTAL CARIES FROM THE GROUP CONSISTING OF ALKALI METAL FLUORIDES, ALKALINE EARTH METAL FLUORIDES, CRYOLITE AND ZINC FLOURIDE IN THE APPROXIMATE CONCENTRATION RANGE OF 0.05% TO 20% BY WEIGHT, AND FLUORIDE BEING ADAPTED TO BECOME AVAILABLE UNDER THE CONDITIONS PREVAILING IN THE ORAL CAVITY.
References Cited (Backward Citations)
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Cited
FR418261A
Cited
US1671104A
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US1754577A
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US1792200A
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US1866433A
Cited
US2071681A
Cited
US2035140A
Cited
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Cited
GB593172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |