US2739573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure motor
Assignee: VACUUM MOTOR Corp
•
Filing: 1953-04-07
•
Granted: 1956-03-27
•
Expires: 1973-04-07
Abstract
No abstract record available.
Inventors
- 👤 Lewis T Hamner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:13
CPC Classifications
F; F01; F01B; F01B29/00; F01B29/02; F01L; F01L25/00; F01L25/02; F01L25/04; F01L25/06; F01L25/063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1943061A
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US2098936A
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US2239613A
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US2642045A
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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) | 1959-03-27 | 1959-09-26 | 1960-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-27 | 1963-09-26 | 1964-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-27 | 1967-09-26 | 1968-03-27 | $7700.00 | Window Closed / Lapsed |