US2954794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-hydraulic servo and inverter system
Assignee: Individual
•
Filing: 1955-11-01
•
Granted: 1960-10-04
•
Expires: 1975-11-01
Abstract
No abstract record available.
Inventors
- 👤 William A Paine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:55
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/04; F15B13/042; F15B13/043; F15B13/0438; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2365; Y10T137/2409
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1966841A
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US2615466A
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US2582088A
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US2635618A
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US2724398A
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US2625136A
Cited
US2652066A
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US2832318A
Cited
US2709421A
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US2731024A
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US2790427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |