US2833256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
One cylinder two cycle engine
Assignee: Individual
•
Filing: 1957-01-31
•
Granted: 1958-05-06
•
Expires: 1977-01-31
Abstract
No abstract record available.
Inventors
- 👤 Ernest G Maynard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:58
CPC Classifications
F; F02; F02B; F02B9/00; F02B9/06; F02B75/00; F02B75/34; F02B75/02; F02B2075/022; F02B2075/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB486273A
Cited
US2317969A
Cited
US2271015A
Cited
US2410229A
Cited
US2391380A
Cited
US2432725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |