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US2553826A
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Hydraulic power transmission for use with rotatable engine-driven power take-off shafts
Assignee: FARM AID IMPLEMENT Co
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Filing: 1947-02-15
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Granted: 1951-05-22
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Expires: 1967-02-15
Abstract
No abstract record available.
Inventors
- 👤 Charles H Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:02
CPC Classifications
F; F16; F16H; F16H3/00; F16H2712/00; F16H2712/04; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18696; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19484
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2433990A
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US2481477A
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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) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |