Patent US2887638A successfully refreshed from Google Patents.
US2887638A
Expired / Lapsed
US
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Control system for automatic machine tools
Assignee: EMI Ltd
•
Filing: 1955-06-29
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Granted: 1959-05-19
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Expires: 1975-06-29
Abstract
No abstract record available.
Inventors
- 👤 Cail Roland Allan
- 👤 Payne Edwin Malcolm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:06
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/182; G05B19/184; G05B19/41; G05B19/4105; G05B2219/00; G05B2219/30; G05B2219/45; G05B2219/45218; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/300896
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) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |