US2586467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-cycle crankcase compression engine
Assignee: Individual
•
Filing: 1948-05-01
•
Granted: 1952-02-19
•
Expires: 1968-05-01
Abstract
No abstract record available.
Inventors
- 👤 Jacobsen Borge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:51
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/34; F02B1/00; F02B1/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US543614A
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US544210A
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US1342976A
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US1460831A
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CH15239A
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US851334A
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US993939A
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US1680710A
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US1829552A
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US2178484A
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US2256002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |