Patent US2851013A successfully refreshed from Google Patents.
US2851013A
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US
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Fluid motor with fluid actuated reversing valve
Assignee: Individual
•
Filing: 1954-09-07
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Granted: 1958-09-09
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Expires: 1974-09-07
Abstract
No abstract record available.
Inventors
- 👤 George E Doughton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:12
CPC Classifications
F; F04; F04B; F04B9/00; F04B9/08; F04B9/12; F04B9/123; F04B9/125; F04B9/1253; F01; F01L; F01L21/00; F01L21/04; F01L25/00; F01L25/02; F01L25/04; F04B53/00; F04B53/14; F16; F16N; F16N13/00; F16N13/02; F16N13/06; F16N13/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1031340A
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US1032689A
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US1858979A
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US2060180A
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US2457721A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |