Patent US2985961A successfully refreshed from Google Patents.
US2985961A
Expired / Lapsed
US
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Trial denture base plates
Assignee: Individual
•
Filing: 1956-11-19
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Granted: 1961-05-30
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Expires: 1976-11-19
Abstract
No abstract record available.
Inventors
- 👤 Jacob D Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:23
CPC Classifications
A; A61; A61C; A61C19/00; A61C19/10; A61C13/00; A61C13/0001
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |