Patent US2462722A successfully refreshed from Google Patents.
US2462722A
Expired / Lapsed
US
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Controllable hydraulic power lift
Assignee: Deere and Co
•
Filing: 1942-02-19
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Granted: 1949-02-22
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Expires: 1962-02-19
Abstract
No abstract record available.
Inventors
- 👤 Frank T Court
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:39
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/20; F15B15/24
Claims Analysis
Total Claims: 0
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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) | 1952-02-22 | 1952-08-23 | 1953-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-22 | 1956-08-23 | 1957-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-22 | 1960-08-23 | 1961-02-22 | $7700.00 | Window Closed / Lapsed |