US2862455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrodynamic machine
Assignee: Oilgear Co
•
Filing: 1954-09-03
•
Granted: 1958-12-02
•
Expires: 1974-09-03
Abstract
No abstract record available.
Inventors
- 👤 Ferris Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:14
CPC Classifications
F; F01; F01B; F01B13/00; F01B13/04; F01B13/06; F01B13/061; F01B13/063; F01B13/065; F01B1/00; F01B1/06; F01B1/0641; F01B1/0644
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2103314A
Cited
US2506974A
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US2612110A
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US2646755A
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US2688924A
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US2660992A
Cited
US2674196A
Cited
US2716944A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |