US2957712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure actuated sealing means for hydraulic actuators
Assignee: Cascade Manufacturing Co
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Filing: 1956-06-06
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Granted: 1960-10-25
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Expires: 1976-06-06
Abstract
No abstract record available.
Inventors
- 👤 Stanley E Farmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:57
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/164
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1725836A
Cited
US2281933A
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FR896468A
Cited
US2533531A
Cited
GB648628A
Cited
US2667348A
Cited
US2692584A
Cited
US2874983A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |