Patent US2817166A successfully refreshed from Google Patents.
US2817166A
Expired / Lapsed
US
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Shankpiece
Assignee: Individual
•
Filing: 1956-01-09
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Granted: 1957-12-24
•
Expires: 1976-01-09
Abstract
No abstract record available.
Inventors
- 👤 Florida L Riggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:21
CPC Classifications
A; A43; A43B; A43B23/00; A43B23/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1432160A
Cited
US874396A
Cited
US1462798A
Cited
US1761079A
Cited
US1711788A
Cited
US1863690A
Cited
US1913424A
Cited
US2135844A
Cited
US2457481A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |