US2474536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable hydraulic pump or motor
Assignee: Individual
•
Filing: 1945-02-17
•
Granted: 1949-06-28
•
Expires: 1965-02-17
Abstract
No abstract record available.
Inventors
- 👤 John E Lundegard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:44
CPC Classifications
F; F01; F01B; F01B13/00; F01B13/04; F01B13/06; F01B13/061; F01B1/00; F01B1/06; F01B1/0641; F01B1/0668; F01B1/0675; F01B1/0686; F01B1/0689; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18208
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US932033A
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US658014A
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US683834A
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US717897A
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US725130A
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US1243494A
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US2099630A
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US2027356A
Cited
US2205913A
Cited
US2257792A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |