Patent US3453349A successfully refreshed from Google Patents.
US3453349A
Expired / Lapsed
US
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Denture base material and method of molding denture base
Assignee: Dentists Supply Company of New York
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Filing: 1966-04-21
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Granted: 1969-07-01
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Expires: 1986-04-21
Abstract
No abstract record available.
Inventors
- 👤 George Bruce Connan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:17
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/80; A61K6/884; A61K6/887
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2013295A
Cited
US2234993A
Cited
US2367767A
Cited
US2681321A
Cited
US2744291A
Cited
US2972170A
Cited
FR1381751A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |