US2777484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power operated screw driving arrangment
Assignee: North American Aviation Corp
•
Filing: 1955-10-10
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Granted: 1957-01-15
•
Expires: 1975-10-10
Abstract
No abstract record available.
Inventors
- 👤 Garth S Groneman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:47
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/02; B25B23/04; B25B23/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1945741A
Cited
US2373992A
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US2565505A
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US2534140A
Cited
US2625967A
Cited
US2670770A
Cited
US2658538A
Cited
US2689589A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |