US3120103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrohydraulic control system
Assignee: General Controls Co
•
Filing: 1959-04-27
•
Granted: 1964-02-04
•
Expires: 1979-04-27
Abstract
No abstract record available.
Inventors
- 👤 Chester S Beard
- 👤 Frank R Hedger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:32
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/40; F15; F15B; F15B15/00; F15B15/18; Y; Y10; Y10S; Y10S60/00; Y10S60/907; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85954; Y10T137/85978; Y10T137/86131; Y10T137/86919
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2561786A
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US962516A
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US1616841A
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US2372311A
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US2356597A
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US2509321A
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US2679727A
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US2676462A
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US2877798A
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US2942581A
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US3018797A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-03 | 1967-08-05 | 1968-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-03 | 1971-08-05 | 1972-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-03 | 1975-08-05 | 1976-02-04 | $7700.00 | Window Closed / Lapsed |