US2567500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid fuel control means
Assignee: ZF International UK Ltd
•
Filing: 1945-11-21
•
Granted: 1951-09-11
•
Expires: 1965-11-21
Abstract
No abstract record available.
Inventors
- 👤 Watson Ernest Ansley
- 👤 Ifield Richard Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:20
CPC Classifications
F; F02; F02D; F02D35/00; Y; Y10; Y10T; Y10T137/00; Y10T137/1842; Y10T137/1939; Y10T137/2012
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE21758E
Cited
US685510A
Cited
US2129886A
Cited
GB464891A
Cited
US2299234A
Cited
US2403371A
Cited
US2422808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |