US2675763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrauuc radial engine
Assignee: —
•
Filing: —
•
Granted: 1954-04-20
•
Expires: 1971-04-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:07
CPC Classifications
F; F01; F01B; F01B1/00; F01B1/06; F01B1/0641; F01B1/0644; F01B1/0668; F01B13/00; F01B13/04; F01B13/06; F01B13/061; F01B13/062
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
NO21119A
Cited
US388522A
Cited
US580838A
Cited
US1398788A
Cited
US1649347A
Cited
US2166114A
Cited
US2173432A
Cited
US2260859A
Cited
US2293692A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |