US2440567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel supply system for internal-combustion engines
Assignee: Individual
•
Filing: 1945-02-27
•
Granted: 1948-04-27
•
Expires: 1965-02-27
Abstract
No abstract record available.
Inventors
- 👤 Armstrong George Jeffrey
- 👤 Dunning John Ernest Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:14
CPC Classifications
F; F02; F02D; F02D9/00; F02D2700/00; F02D2700/02; F02D2700/0217; F02D2700/0261; F02D2700/0266
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB429682A
Cited
US2341257A
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US2224472A
Cited
GB523895A
Cited
US2250932A
Cited
US2348008A
Cited
US2303998A
Cited
US2374844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-27 | 1951-10-27 | 1952-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-27 | 1955-10-27 | 1956-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-27 | 1959-10-27 | 1960-04-27 | $7700.00 | Window Closed / Lapsed |