US2703077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine cylinder structure
Assignee: Fairbanks Morse and Co
•
Filing: 1952-07-08
•
Granted: 1955-03-01
•
Expires: 1972-07-08
Abstract
No abstract record available.
Inventors
- 👤 Anker K Antonsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:35
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/18; F02F1/186
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AT73897B
Cited
US1486583A
Cited
US1529719A
Cited
US1836798A
Cited
GB566917A
Cited
US2446841A
Cited
GB582569A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-28 | 1958-08-30 | 1959-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-28 | 1962-08-30 | 1963-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-28 | 1966-08-30 | 1967-03-01 | $7700.00 | Window Closed / Lapsed |