US2569002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual fuel internal-combustion engine
Assignee: Murphy Diesel Co
•
Filing: 1949-05-14
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Granted: 1951-09-25
•
Expires: 1969-05-14
Abstract
No abstract record available.
Inventors
- 👤 John H Holloway
- 👤 Kenneth G Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:51
CPC Classifications
F; F02; F02D; F02D19/00; F02D19/06; F02D19/08; F02D19/10; F02D19/0602; F02D19/0607; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2400219A
Cited
US2400247A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |