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US2941513A
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Speed control for oscillating hydraulic motors
Assignee: ROTO TORK Manufacturing CO
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Filing: 1957-03-28
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Granted: 1960-06-21
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Expires: 1977-03-28
Abstract
No abstract record available.
Inventors
- 👤 Edward F Paulus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:23
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; F15B11/04; F15B11/046; F15B11/048; F15B15/00; F15B15/08; F15B15/12; F15B2211/00; F15B2211/70; F15B2211/705; F15B2211/7058; F15B2211/75
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2132721A
Cited
US2701448A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |