Patent US3896504A successfully refreshed from Google Patents.
Patent DE401476C successfully refreshed from Google Patents.
US2006237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic engine
Assignee: Individual
•
Filing: 1934-03-24
•
Granted: 1935-06-25
•
Expires: 1954-03-24
Abstract
No abstract record available.
Inventors
- 👤 Eynard Elysee Marius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:03
CPC Classifications
F; F01; F01C; F01C21/00; F01C21/18; F01C21/186; F01B; F01B1/00; F01B1/06; F01B1/0675; F01B1/0686; F01B1/0689; F03; F03C; F03C1/00; F03C1/02; F03C1/04; F03C1/0447; F03C1/045; F03C1/047; F03C1/0472; F03C1/0474; F03C1/0476
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1938-06-24 | 1938-12-24 | 1939-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-06-24 | 1942-12-24 | 1943-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-06-24 | 1946-12-24 | 1947-06-25 | $7700.00 | Window Closed / Lapsed |