US2561407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wrench shank having springy-arm jaws cammed by slidable threadedsleeve actuated by nut swiveling on shank
Assignee: Individual
•
Filing: 1948-03-30
•
Granted: 1951-07-24
•
Expires: 1968-03-30
Abstract
No abstract record available.
Inventors
- 👤 De Reath N Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:12
CPC Classifications
B; B25; B25B; B25B13/00; B25B13/44; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17291; Y10T279/17299
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |