US2902009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic motor with wide vane and duplicate exhaust ports and special seals
Assignee: Ex-Cell-O Corp
•
Filing: 1956-02-16
•
Granted: 1959-09-01
•
Expires: 1976-02-16
Abstract
No abstract record available.
Inventors
- 👤 Ludwig Carl
- 👤 Charles H Wheeler
- 👤 Alfred R Deedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:04
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/08; F15B15/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1178695A
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US1892187A
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US2404262A
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US2518871A
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US2534530A
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US2540903A
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US2738996A
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US2778338A
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US2708907A
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US2825307A
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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) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |