US2604853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary fluid pump or motor
Assignee: Individual
•
Filing: 1946-12-10
•
Granted: 1952-07-29
•
Expires: 1966-12-10
Abstract
No abstract record available.
Inventors
- 👤 Taylor Francis William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:51
CPC Classifications
F; F01; F01C; F01C1/00; F01C1/30; F01C1/40; F01C1/44; F01C20/00; F01C20/18; F01C20/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1565401A
Cited
DE459448C
Cited
FR640856A
Cited
FR37664E
Cited
US2062310A
Cited
US2135760A
Cited
US2145872A
Cited
US2151484A
Cited
US2338112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |