Patent US2466795A successfully refreshed from Google Patents.
US2466795A
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Hydraulic operating valve
Assignee: Lockheed Martin Corp
•
Filing: 1944-11-22
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Granted: 1949-04-12
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Expires: 1964-11-22
Abstract
No abstract record available.
Inventors
- 👤 Crot Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:36
CPC Classifications
F; F16; F16K; F16K39/00; F16K39/02; F16K39/022; F15; F15B; F15B13/00; F15B13/02; F15B13/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87056; Y10T137/87064
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US702383A
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US733220A
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US1080495A
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US1252940A
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US1595458A
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US1850209A
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US2134208A
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US2276630A
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US2249656A
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US2294702A
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US2323947A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-11 | 1952-10-11 | 1953-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-11 | 1956-10-11 | 1957-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-11 | 1960-10-11 | 1961-04-12 | $7700.00 | Window Closed / Lapsed |