US2654355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Four-stroke internal-combustion engine
Assignee: Individual
•
Filing: 1951-03-15
•
Granted: 1953-10-06
•
Expires: 1971-03-15
Abstract
No abstract record available.
Inventors
- 👤 Scheiterlein Andreas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:26
CPC Classifications
F; F02; F02B; F02B33/00; F02B33/32; F02B33/34; F02B33/36; F02B33/38; F02B67/00; F02B67/10; F02M; F02M39/00; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1396890A
Cited
GB251547A
Cited
US2057062A
Cited
US2113077A
Cited
US2099852A
Cited
US2142210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |