US2798462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic motor with wide vane and duplicate ports for cushioning vane and pressurized seals
Assignee: Ex-Cell-O Corp
•
Filing: 1956-02-15
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Granted: 1957-07-09
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Expires: 1976-02-15
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
2026-10-27 23:50
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/08; F15B15/12; F15B15/20; F15B15/22; F15B15/224
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US840877A
Cited
US1494025A
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US1567213A
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US1579127A
Cited
US2459475A
Cited
US2540903A
Cited
US2633105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-08 | 1961-01-07 | 1961-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-08 | 1965-01-07 | 1965-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-08 | 1969-01-07 | 1969-07-09 | $7700.00 | Window Closed / Lapsed |