Patent US2650573A successfully refreshed from Google Patents.
US2650573A
Expired / Lapsed
US
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Rotary fluid motor or pump
Assignee: Individual
•
Filing: 1947-10-11
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Granted: 1953-09-01
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Expires: 1967-10-11
Abstract
No abstract record available.
Inventors
- 👤 Albert F Hickman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:39
CPC Classifications
F; F16; F16H; F16H39/00; F16H39/04; F16H39/06; F16H39/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1164897A
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US1298178A
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US1926692A
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US2243464A
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US2255782A
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US2474348A
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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) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |