US2556773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diesel engine combustion chamber
Assignee: AMERICAN LOCOMOTIVE Corp
•
Filing: 1947-04-25
•
Granted: 1951-06-12
•
Expires: 1967-04-25
Abstract
No abstract record available.
Inventors
- 👤 William M Nichols
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:04
CPC Classifications
F; F02; F02B; F02B23/00; F02B2720/00; F02B2720/25; F02B2720/257; F02B2720/258; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1856328A
Cited
US2001358A
Cited
US2055814A
Cited
US2126939A
Cited
US2292409A
Cited
US2349305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-11 | 1954-12-11 | 1955-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-11 | 1958-12-11 | 1959-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-11 | 1962-12-11 | 1963-06-12 | $7700.00 | Window Closed / Lapsed |