US2484337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrodynamic machine
Assignee: Oilgear Co
•
Filing: 1943-05-01
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Granted: 1949-10-11
•
Expires: 1963-05-01
Abstract
No abstract record available.
Inventors
- 👤 Ferris Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:54
CPC Classifications
F; F01; F01B; F01B13/00; F01B13/04; F01B13/06; F01B13/061; F01B13/063; F01B13/065; F01B1/00; F01B1/06; F01B1/0641; F01B1/0648; F01B1/0675; F01B1/0686; F01B1/0689; F03; F03C; F03C1/00; F03C1/02; F03C1/04; F03C1/0403; F03C1/0435; F03C1/0444; F04; F04B; F04B23/00; F04B23/04; F04B23/08; F04B23/10; F04B23/103; F04B23/12
Claims Analysis
Total Claims: 0
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US1978441A
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US2366388A
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US2397314A
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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) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |