Patent US2529984A successfully refreshed from Google Patents.
US2529984A
Expired / Lapsed
US
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Air-cooled supercharged combustion engine
Assignee: Schweizerische Lokomotiv und Maschinenfabrik AG (SLM)
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Filing: 1945-11-13
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Granted: 1950-11-14
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Expires: 1965-11-13
Abstract
No abstract record available.
Inventors
- 👤 Wiederkehr Hans
- 👤 Feiss Rene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:16
CPC Classifications
F; F02; F02B; F02B39/00; F02B39/02; F02B39/12; F01; F01P; F01P5/00; F01P5/02; F01P5/04; F02B37/00; F02B37/005; F02B37/04; F02B37/10; F02B37/105; F02B39/04; F02B39/06; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1704082A
Cited
US1598867A
Cited
US1934385A
Cited
US1961905A
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US1907454A
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US2168726A
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US2160281A
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US2336844A
Cited
US2340396A
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US2321097A
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US2366365A
Cited
US2427284A
Cited
US2384381A
Cited
US2384088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-13 | 1954-05-15 | 1954-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-13 | 1958-05-15 | 1958-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-13 | 1962-05-15 | 1962-11-14 | $7700.00 | Window Closed / Lapsed |