US2741732A
Expired / Lapsed
US
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Motor control system for automatic machine tools
Assignee: Ambac International Corp
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Filing: 1951-08-02
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Granted: 1956-04-10
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Expires: 1971-08-02
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Cunningham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:33
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/33; G05B19/35; G05B19/351; G05B2219/00; G05B2219/30; G05B2219/33; G05B2219/33268; G05B2219/36; G05B2219/36366; G05B2219/36368; G05B2219/37; G05B2219/37462; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53004; Y10T29/53009; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/300896; Y10T409/309576; Y10T409/309856; Y10T74/00; Y10T74/13; Y10T74/131; Y10T74/14; Y10T74/1418; Y10T74/1424; Y10T74/1453; Y10T82/00; Y10T82/25; Y10T82/2502; Y10T82/2531; Y10T82/2533; Y10T82/2535
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |