US2632398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring for urging outward the vanes of vane type hydrodynamic machines
Assignee: Oilgear Co
•
Filing: 1946-12-05
•
Granted: 1953-03-24
•
Expires: 1966-12-05
Abstract
No abstract record available.
Inventors
- 👤 Ferris Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:02
CPC Classifications
F; F01; F01C; F01C21/00; F01C21/08; F01C21/0809; F01C21/0818; F01C21/0827; F01C21/0845
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US138433A
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US409587A
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US602334A
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US825374A
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US928421A
Cited
US1409548A
Cited
US1402899A
Cited
US2216053A
Cited
US2312961A
Cited
US2357333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |