US2058055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: Fairbanks Morse and Co
•
Filing: 1929-08-21
•
Granted: 1936-10-20
•
Expires: 1949-08-21
Abstract
No abstract record available.
Inventors
- 👤 Alfred C Boock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:53
CPC Classifications
F; F02; F02F; F02F7/00; F02F7/0043; F02F7/0053; Y; Y10; Y10S; Y10S123/00; Y10S123/06; Y10T; Y10T74/00; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-10-20 | 1940-04-20 | 1940-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-10-20 | 1944-04-20 | 1944-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-10-20 | 1948-04-20 | 1948-10-20 | $7700.00 | Window Closed / Lapsed |