Patent US3458759A successfully refreshed from Google Patents.
US2497797A
Expired / Lapsed
US
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Device for securing oars in a rowboat
Assignee: Individual
•
Filing: 1947-04-02
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Granted: 1950-02-14
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Expires: 1967-04-02
Abstract
No abstract record available.
Inventors
- 👤 Rogers Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:14
CPC Classifications
E; E05; E05B; E05B73/00; E05B73/007; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5009; Y10T70/5022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1816334A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |