US2555818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual fuel engine
Assignee: Baldwin Lima Hamilton Corp
•
Filing: 1946-07-24
•
Granted: 1951-06-05
•
Expires: 1966-07-24
Abstract
No abstract record available.
Inventors
- 👤 Paul S Shirley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:00
CPC Classifications
F; F02; F02B; F02B7/00; F02B7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1138628A
Cited
US1166281A
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US1280201A
Cited
US1568588A
Cited
US2036989A
Cited
US1846654A
Cited
US2294152A
Cited
US2423728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-04 | 1954-12-04 | 1955-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-04 | 1958-12-04 | 1959-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-04 | 1962-12-04 | 1963-06-05 | $7700.00 | Window Closed / Lapsed |