US2439879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multicylinder fuel injection pump
Assignee: Individual
•
Filing: 1944-12-02
•
Granted: 1948-04-20
•
Expires: 1964-12-02
Abstract
No abstract record available.
Inventors
- 👤 Allen Ivis James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:05
CPC Classifications
F; F02; F02M; F02M59/00; F02M59/44; F02M41/00; F02M41/08; F02M59/02; F02M59/04; F04; F04B; F04B1/00; F04B1/12; F04B1/14; F02M2700/00; F02M2700/13; F02M2700/1317; F02M2700/1329
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2016405A
Cited
US2187151A
Cited
US2251783A
Cited
US2219002A
Cited
US2337510A
Cited
US2381585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-20 | 1951-10-20 | 1952-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-20 | 1955-10-20 | 1956-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-20 | 1959-10-20 | 1960-04-20 | $7700.00 | Window Closed / Lapsed |