US2477173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-stroke internal-combustion engine
Assignee: Individual
•
Filing: 1946-05-27
•
Granted: 1949-07-26
•
Expires: 1966-05-27
Abstract
No abstract record available.
Inventors
- 👤 Farkas Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:33
CPC Classifications
F; F02; F02B; F02B25/00; F02B2700/00; F02B2700/03; F02B2700/038
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR344967A
Cited
US1503184A
Cited
US1508099A
Cited
US1661738A
Cited
US1656316A
Cited
FR641326A
Cited
GB357519A
Cited
FR688850A
Cited
US2065600A
Cited
US2134286A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-25 | 1953-01-24 | 1953-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-25 | 1957-01-24 | 1957-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-25 | 1961-01-24 | 1961-07-26 | $7700.00 | Window Closed / Lapsed |