US2684704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock nut
Assignee: Illinois Tool Works Inc
•
Filing: 1952-06-06
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Granted: 1954-07-27
•
Expires: 1972-06-06
Abstract
No abstract record available.
Inventors
- 👤 Edmond C Crowther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:43
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/04; F16B37/041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US134489A
Cited
US1194944A
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AU1889829A
Cited
US1957042A
Cited
US2338754A
Cited
US2405925A
Cited
US2378684A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-26 | 1958-01-25 | 1958-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-26 | 1962-01-25 | 1962-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-26 | 1966-01-25 | 1966-07-27 | $7700.00 | Window Closed / Lapsed |