US2764197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Driver for recessed head screws
Assignee: North American Aviation Corp
•
Filing: 1952-10-07
•
Granted: 1956-09-25
•
Expires: 1972-10-07
Abstract
No abstract record available.
Inventors
- 👤 Carel T Torresen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:28
CPC Classifications
B; B25; B25B; B25B15/00; B25B15/001; B25B15/004; B25B15/005; Y; Y10; Y10S; Y10S411/00; Y10S411/919
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US839105A
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US1899489A
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US2285461A
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US2402342A
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US2445525A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |