Patent US2618249A successfully refreshed from Google Patents.
US2618249A
Expired / Lapsed
US
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Two-cycle crankcase compression engine
Assignee: Individual
•
Filing: 1950-04-12
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Granted: 1952-11-18
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Expires: 1970-04-12
Abstract
No abstract record available.
Inventors
- 👤 Teegen Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:12
CPC Classifications
F; F02; F02B; F02B25/00; F02B2720/00; F02B2720/13; F02B2720/131
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1195070A
Cited
US808336A
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US882401A
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US943598A
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GB191105100A
Cited
US1125375A
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US1125376A
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US1289006A
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CH129373A
Cited
FR884757A
Cited
US2583499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-18 | 1956-05-19 | 1956-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-18 | 1960-05-19 | 1960-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-18 | 1964-05-19 | 1964-11-18 | $7700.00 | Window Closed / Lapsed |