US2774141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pontics for dental bridges
Assignee: Individual
•
Filing: 1953-03-23
•
Granted: 1956-12-18
•
Expires: 1973-03-23
Abstract
No abstract record available.
Inventors
- 👤 William T Quinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:50
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/225; A61C13/26; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49567
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2136404A
Cited
US2576206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |