US2588342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid engine
Assignee: Individual
•
Filing: 1943-01-02
•
Granted: 1952-03-11
•
Expires: 1963-01-02
Abstract
No abstract record available.
Inventors
- 👤 Earl E Bidwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:16
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/30; F04C2/34; F04C2/344; F03; F03C; F03C2/00; F03C2/30; F04C18/00; F04C18/30; F04C18/34; F04C18/344
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1955-03-11 | 1955-09-10 | 1956-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-11 | 1959-09-10 | 1960-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-11 | 1963-09-10 | 1964-03-11 | $7700.00 | Window Closed / Lapsed |