Patent US2966147A successfully refreshed from Google Patents.
US2966147A
Expired / Lapsed
US
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Air-cooled internal combustion engine arrangement
Assignee: Dr Ing HCF Porsche AG
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Filing: 1959-08-17
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Granted: 1960-12-27
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Expires: 1979-08-17
Abstract
No abstract record available.
Inventors
- 👤 Binder Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:39
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/12; F02M35/1205; F02M35/1233; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; F02B75/16; F02B75/18; F02B75/24; F02B75/243
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1922200A
Cited
US2747558A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |