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US2625136A
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Electrohydraulic servo mechanism
Assignee: Research Corp
•
Filing: 1950-04-26
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Granted: 1953-01-13
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Expires: 1970-04-26
Abstract
No abstract record available.
Inventors
- 👤 Jr William C Moog
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:54
CPC Classifications
F; F15; F15B; F15B9/00; F15B9/16; F15B9/17; F15B13/00; F15B13/02; F15B13/04; F15B13/042; F15B13/043; F15B13/0438; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86582; Y10T137/8659
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB174396A
Cited
CH98885A
Cited
CH112466A
Cited
US1754410A
Cited
CH217121A
Cited
US2261827A
Cited
US2520115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-13 | 1956-07-14 | 1957-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-13 | 1960-07-14 | 1961-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-13 | 1964-07-14 | 1965-01-13 | $7700.00 | Window Closed / Lapsed |