US2608933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrodynamic machine
Assignee: Oilgear Co
•
Filing: 1945-09-24
•
Granted: 1952-09-02
•
Expires: 1965-09-24
Abstract
No abstract record available.
Inventors
- 👤 Ferris Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:37
CPC Classifications
F; F01; F01B; F01B1/00; F01B1/06; F01B1/0641; F01B1/0648; F01B1/0644; F01B1/0658; F01B1/0662; F01B1/0672; F01B13/00; F01B13/04; F01B13/06; F01B13/061; F01B13/063; F01B13/065; F01B3/00; F01B3/0032; F01B3/0044; F01B3/0052; F01B3/0055; F01B3/0082; F01B3/0085; F01B3/0088; F01B3/10; F01B3/103; F01B3/105
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB113163A
Cited
US1634867A
Cited
US1925378A
Cited
US2074068A
Cited
US1998984A
Cited
US2069651A
Cited
US2254103A
Cited
US2229715A
Cited
US2231361A
Cited
US2284109A
Cited
US2273468A
Cited
US2345446A
Cited
US2304903A
Cited
US2406138A
Cited
US2420080A
Cited
US2484337A
Cited
US2470220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |