US2872934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for fluid operated power device
Assignee: Warner and Swasey Co
•
Filing: 1955-02-21
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Granted: 1959-02-10
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Expires: 1975-02-21
Abstract
No abstract record available.
Inventors
- 👤 Donald P Eckman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:14
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/18; B23Q2735/00; B23Q2735/02; B23Q2735/08; B23Q2735/082; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2409
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2675652A
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US787136A
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DE423676C
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US2020847A
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US2237038A
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US2396951A
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FR910115A
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US2484557A
Cited
US2625136A
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US2709421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |