US3396635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cushion stop for hydraulic actuators
Assignee: Cessna Aircraft Co
•
Filing: 1966-11-30
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Granted: 1968-08-13
•
Expires: 1986-11-30
Abstract
No abstract record available.
Inventors
- 👤 Marvin C Darling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:03
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/20; F15B15/22; F15B15/222; F15B13/00; F15B13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2028766A
Cited
US2464283A
Cited
US2493602A
Cited
US2681581A
Cited
US2741895A
Cited
US2935047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |