Patent US2505887A successfully refreshed from Google Patents.
US2505887A
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Control for fluid-pressure actuated devices
Assignee: Lockheed Martin Corp
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Filing: 1944-12-11
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Granted: 1950-05-02
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Expires: 1964-12-11
Abstract
No abstract record available.
Inventors
- 👤 John S Edison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:55
CPC Classifications
G; G01; G01M; G01M5/00; G01M5/0041; G01M5/005; G01M5/0016; Y; Y10; Y10S; Y10S137/00; Y10S137/906; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/265; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7796; Y10T137/8158; Y10T137/8225; Y10T137/8593; Y10T137/877; Y10T137/87708; Y10T137/87732
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US521315A
Cited
US1012288A
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US1632618A
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US1831089A
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US1972852A
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US2064864A
Cited
US2099443A
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US2172981A
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US2312726A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-01 | 1953-10-31 | 1954-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-01 | 1957-10-31 | 1958-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-01 | 1961-10-31 | 1962-05-02 | $7700.00 | Window Closed / Lapsed |