US2884908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and means for converting diesel internal combustion engines to steam actuated engines
Assignee: Individual
•
Filing: 1956-03-30
•
Granted: 1959-05-05
•
Expires: 1976-03-30
Abstract
No abstract record available.
Inventors
- 👤 Frank G Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:40
CPC Classifications
F; F01; F01B; F01B17/00; F01B17/02; F01B17/04; F01B2171/00; F01B2171/02; Y; Y10; Y10S; Y10S123/00; Y10S123/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US564112A
Cited
FR331648A
Cited
US1514057A
Cited
US1852932A
Cited
US1802828A
Cited
US1828657A
Cited
US2001577A
Cited
GB555651A
Cited
US2397130A
Cited
US2726646A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |