US2565681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injection for internal combustion engines
Assignee: Caterpillar Inc
•
Filing: 1945-11-01
•
Granted: 1951-08-28
•
Expires: 1965-11-01
Abstract
No abstract record available.
Inventors
- 👤 Kenneth J Fleck
- 👤 Harold H Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:36
CPC Classifications
F; F02; F02M; F02M59/00; F02M59/20; F02M59/24; F02M59/26; F02M59/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1847718A
Cited
US1966694A
Cited
US1953449A
Cited
CH171126A
Cited
US2192387A
Cited
GB514011A
Cited
US2356511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |