Patent US2936588A successfully refreshed from Google Patents.
US2936588A
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US
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Hydraulic pump and motor apparatus with load responsive pump regulating means
Assignee: Deere and Co
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Filing: 1958-01-20
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Granted: 1960-05-17
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Expires: 1978-01-20
Abstract
No abstract record available.
Inventors
- 👤 Harlan W Van Gerpen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:36
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; F15B11/04; F15B11/05; F15B11/055; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20546; F15B2211/20553; F15B2211/25; F15B2211/253; F15B2211/60; F15B2211/635
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1628603A
Cited
US2097857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |