US2939448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric starter attachment for internal combustion engines
Assignee: Outboard Marine Corp
•
Filing: 1957-04-04
•
Granted: 1960-06-07
•
Expires: 1977-04-04
Abstract
No abstract record available.
Inventors
- 👤 Einar T Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:36
CPC Classifications
F; F02; F02N; F02N11/00; F02N15/00; F02N15/006; F02N15/02; F02N15/022; F02N3/00; F02N3/02; F02N5/00; F02N5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1006064A
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US1288087A
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US1288086A
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US1288088A
Cited
US1727086A
Cited
US2404419A
Cited
US2530623A
Cited
US2693718A
Cited
US2731005A
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US2759372A
Cited
US2835241A
Cited
US2838938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |