US2817257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ratchet wrench with supplemental head turning means
Assignee: Individual
•
Filing: 1956-05-18
•
Granted: 1957-12-24
•
Expires: 1976-05-18
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Kniser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:28
CPC Classifications
B; B25; B25B; B25B13/00; B25B13/46; B25B13/461; B25B13/462; B25B13/463; B25B13/466; B25B13/467
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US919260A
Cited
US1808959A
Cited
US1970721A
Cited
US2508568A
Cited
US2633044A
Cited
US2726563A
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 |