US2661701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axial type hydrodynamic machine
Assignee: Oilgear Co
•
Filing: 1947-10-03
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Granted: 1953-12-08
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Expires: 1967-10-03
Abstract
No abstract record available.
Inventors
- 👤 Ferris Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:41
CPC Classifications
F; F01; F01B; F01B3/00; F01B3/0032; F01B3/0041; F01B3/0044; F01B3/0052; F01B3/0055; F01B3/0064; F01B3/0067; F01B3/007; F01B3/0073; F01B3/0082; F01B3/0085; F01B3/10; F01B3/103; F01B3/109; F04; F04B; F04B23/00; F04B23/04; F04B23/08; F04B23/10; F04B23/106; F04B49/00; F04B49/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE21758E
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US2114076A
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US2234169A
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US2141935A
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GB527486A
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US2313407A
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US2406138A
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US2455330A
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US2397314A
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US2421846A
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US2525979A
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US2458935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |