US2686546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-locking nut and process of manufacturing same
Assignee: MacLean Fogg Lock Nut Co
•
Filing: 1947-06-19
•
Granted: 1954-08-17
•
Expires: 1967-06-19
Abstract
No abstract record available.
Inventors
- 👤 Jr John A Maclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:49
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/64; B21K1/70; B21K1/707; F; F16; F16B; F16B39/00; F16B39/22; F16B39/28; F16B39/284
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US675740A
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US1263061A
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FR607984A
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US1903921A
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US1903922A
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US2125276A
Cited
US2286982A
Cited
US2445696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-16 | 1958-02-15 | 1958-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-16 | 1962-02-15 | 1962-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-16 | 1966-02-15 | 1966-08-17 | $7700.00 | Window Closed / Lapsed |