Patent US2877968A successfully refreshed from Google Patents.
US2877968A
Expired / Lapsed
US
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Combined manual and automatic servomotor apparatus
Assignee: General Electric Co
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Filing: 1954-10-28
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Granted: 1959-03-17
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Expires: 1974-10-28
Abstract
No abstract record available.
Inventors
- 👤 John R Granan
- 👤 Horace H Christensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:39
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/0055; G05D1/0061; F; F15; F15B; F15B21/00; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19535
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1154591A
Cited
US1628603A
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US2441044A
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US2536198A
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US2705940A
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US2678177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |