US2597514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overload torque release mechanism
Assignee: Individual
•
Filing: 1945-03-27
•
Granted: 1952-05-20
•
Expires: 1965-03-27
Abstract
No abstract record available.
Inventors
- 👤 Gerald J Nash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:42
CPC Classifications
E; E21; E21B; E21B44/00; E21B44/02; E21B44/04; F; F16; F16D; F16D43/00; F16D43/02; F16D43/20; F16D43/21; F16D43/213; F16D43/215; F16D2300/00; F16D2300/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2345444A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |