US2542765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable speed fluid actuated servomotor
Assignee: Woodward Inc
•
Filing: 1946-11-01
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Granted: 1951-02-20
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Expires: 1966-11-01
Abstract
No abstract record available.
Inventors
- 👤 Gillespie Sidney Lockwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:03
CPC Classifications
G; G05; G05D; G05D13/00; F; F15; F15B; F15B9/00; F15B9/02; F15B9/08; F15B9/12; Y; Y10; Y10T; Y10T137/00; Y10T137/0971; Y10T137/108; Y10T137/1171; Y10T137/6198; Y10T137/8593; Y10T137/87917; Y10T137/88022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1968390A
Cited
US2397213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |