US2945479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid engines
Assignee: Individual
•
Filing: 1957-05-31
•
Granted: 1960-07-19
•
Expires: 1977-05-31
Abstract
No abstract record available.
Inventors
- 👤 Pallo Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:17
CPC Classifications
F; F03; F03C; F03C1/00; F03C1/02; F03C1/04; F03C1/053; F03C1/0403; F03C1/0435; F03C1/0438; F03C1/0447
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US671739A
Cited
US690743A
Cited
US727772A
Cited
US736438A
Cited
FR454411A
Cited
US2246074A
Cited
US2326464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |