US2765378A
Expired / Lapsed
US
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Circuit breaker with hydraulic motor controlled by a hydraulically biased valve
Assignee: Allis Chalmers Corp
•
Filing: 1953-05-26
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Granted: 1956-10-02
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Expires: 1973-05-26
Abstract
No abstract record available.
Inventors
- 👤 Perry Elijah Robert
- 👤 Nicholas W Morelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:26
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/28; H01H33/30; H01H33/34; H01H2033/308; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86622; Y10T137/8667; Y10T137/86694; Y10T137/8671
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2214816A
Cited
US2290479A
Cited
US2392471A
Cited
US2607321A
Cited
US2578204A
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US2621676A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |