Patent US2880838A successfully refreshed from Google Patents.
US2880838A
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US
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Fluid motor control
Assignee: International Business Machines Corp
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Filing: 1954-12-31
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Granted: 1959-04-07
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Expires: 1974-12-31
Abstract
No abstract record available.
Inventors
- 👤 Hugo A Panissidi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:12
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/4035; B; B41; B41J; B41J11/00; B41J11/36; B41J11/42; B41J11/44; B63; B63B; B63B59/00; B63B59/04; C; C09; C09D; C09D5/00; C09D5/16; C09D5/1687
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1101108A
Cited
US2107128A
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US2251147A
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US2275321A
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US2416801A
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US2531428A
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US2635428A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |