Patent US2292233A successfully refreshed from Google Patents.
US2292233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: Individual
•
Filing: 1940-03-14
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Granted: 1942-08-04
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Expires: 1960-03-14
Abstract
No abstract record available.
Inventors
- 👤 Lysholm Alf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:20
CPC Classifications
F; F02; F02B; F02B63/00; F02B63/06; F02B1/00; F02B25/00; F02B25/14; F02B25/145; F02B33/00; F02B33/32; F02B33/34; F02B33/36; F02B33/44; F02B37/00; F02B75/00; F02B75/16; F02B75/18; F02B75/20; F02D; F02D13/00; F02D13/02; F02D13/0242; F02D13/0246; F02D13/0261; F02M; F02M59/00; F02M59/20; F02M59/30; F02B75/02; F02B2075/022; F02B2075/027; F02B2700/00; F02B2700/02; F02B2700/023; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
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) | 1945-08-03 | 1946-02-02 | 1946-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-08-03 | 1950-02-02 | 1950-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-08-03 | 1954-02-02 | 1954-08-04 | $7700.00 | Window Closed / Lapsed |