US3390613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrohydraulic actuators
Assignee: HM Hobson Ltd
•
Filing: 1967-05-31
•
Granted: 1968-07-02
•
Expires: 1987-05-31
Abstract
No abstract record available.
Inventors
- 👤 Westbury Roy
- 👤 Maltby Peter John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:20
CPC Classifications
F; F15; F15B; F15B9/00; F15B9/16; F15B9/17; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2322
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |