US2549552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for controlling the supply of liquid fuel to internal-combustion prime movers
Assignee: ZF International UK Ltd
•
Filing: 1946-02-06
•
Granted: 1951-04-17
•
Expires: 1966-02-06
Abstract
No abstract record available.
Inventors
- 👤 Watson Ernest Ansley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:06
CPC Classifications
F; F01; F01C; F01C21/00; F01C21/18; F02; F02D; F02D1/00; F02D1/02; F02D1/08; F02D1/12; Y; Y10; Y10S; Y10S60/00; Y10S60/913
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US783953A
Cited
US1357294A
Cited
US1427485A
Cited
US1992301A
Cited
US1963189A
Cited
US1891972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |