US2679770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool selective device
Assignee: North American Aviation Corp
•
Filing: 1953-07-16
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Granted: 1954-06-01
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Expires: 1973-07-16
Abstract
No abstract record available.
Inventors
- 👤 William A Carter
- 👤 Wythe Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:40
CPC Classifications
B; B25; B25F; B25F3/00; B23; B23B; B23B39/00; B23B39/16; B23B39/20; B23B39/205; B23B45/00; B23B45/003; Y; Y10; Y10S; Y10S408/00; Y10S408/714; Y10T; Y10T29/00; Y10T29/51; Y10T29/5152; Y10T29/5154; Y10T29/5155; Y10T408/00; Y10T408/36; Y10T408/37
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1104517A
Cited
US2303565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-31 | 1957-11-30 | 1958-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-31 | 1961-11-30 | 1962-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-31 | 1965-11-30 | 1966-06-01 | $7700.00 | Window Closed / Lapsed |