US2279388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock nut and method of making the same
Assignee: Individual
•
Filing: 1941-08-14
•
Granted: 1942-04-14
•
Expires: 1961-08-14
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:40
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/02; B; B21; B21D; B21D53/00; B21D53/24; F16B39/00; F16B39/22; F16B39/28; F16B39/284; F16B23/00; F16B37/04; F16B37/06; F16B37/062; F16B37/064
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-04-13 | 1945-10-13 | 1946-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-04-13 | 1949-10-13 | 1950-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-04-13 | 1953-10-13 | 1954-04-14 | $7700.00 | Window Closed / Lapsed |