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US2594664A
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Hydraulic control valve with automatic hold and release
Assignee: Bendix Aviation Corp
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Filing: 1949-10-31
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Granted: 1952-04-29
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Expires: 1969-10-31
Abstract
No abstract record available.
Inventors
- 👤 Carlos B Livers
- 👤 Alvin A Meddock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:38
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/06; F16K11/065; F16K11/07; F16K11/0704; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86485; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2184793A
Cited
US2243364A
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US2427567A
Cited
US2451730A
Cited
US2480527A
Cited
US2532552A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-29 | 1955-10-29 | 1956-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-29 | 1959-10-29 | 1960-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-29 | 1963-10-29 | 1964-04-29 | $7700.00 | Window Closed / Lapsed |