US2789457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universally floating nut
Assignee: North American Aviation Corp
•
Filing: 1953-04-10
•
Granted: 1957-04-23
•
Expires: 1973-04-10
Abstract
No abstract record available.
Inventors
- 👤 Max A Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:26
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/04; F16B37/045; F16B37/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US167118A
Cited
US841742A
Cited
US1077051A
Cited
US1345358A
Cited
US1412502A
Cited
US1581802A
Cited
US1548382A
Cited
US2401208A
Cited
US2623399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |