US2946646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine tool cutting time indicator
Assignee: North American Aviation Corp
•
Filing: 1954-05-20
•
Granted: 1960-07-26
•
Expires: 1974-05-20
Abstract
No abstract record available.
Inventors
- 👤 John L Bower
- 👤 Thomas E Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:18
CPC Classifications
G; G07; G07C; G07C3/00; G07C3/02; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/309184
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1989233A
Cited
US2038187A
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US2306372A
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US2321992A
Cited
US2338599A
Cited
US2340114A
Cited
US2677093A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |