US3407745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic apparatus
Assignee: Boulton Paul Aircraft Ltd
•
Filing: 1966-07-18
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Granted: 1968-10-29
•
Expires: 1986-07-18
Abstract
No abstract record available.
Inventors
- 👤 John D North
- 👤 Dennis J Millard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:22
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/12; F04B1/20; F04B1/2014; F04B1/2042; F04B1/122; F04B1/124; F04B1/126; F04B1/2064; F04B1/2071; F04B1/2078; F04B1/2085; F04B1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1822064A
Cited
US2273468A
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US2915985A
Cited
FR1302652A
Cited
US3207082A
Cited
FR1343916A
Cited
US3200762A
Cited
US3166016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |