US2659204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic power system
Assignee: Societe dInventions Aeronautiques et Mechaniques SIAM SA
•
Filing: 1950-11-18
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Granted: 1953-11-17
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Expires: 1970-11-18
Abstract
No abstract record available.
Inventors
- 👤 Conway Hugh Graham
- 👤 Fairclough Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:27
CPC Classifications
F; F15; F15B; F15B21/00; F15B21/04; F15B21/042; F15B21/0427; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/20576; F15B2211/20584; F15B2211/50; F15B2211/505; F15B2211/50509; F15B2211/50536
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB360458A
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US1904345A
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US2026853A
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US2071605A
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US2146166A
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US2343375A
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US2297381A
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US2355669A
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US2543989A
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US2557333A
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US2557334A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |