US2529984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-cooled supercharged combustion engine
Assignee: Schweizerische Lokomotiv und Maschinenfabrik AG (SLM)
•
Filing: 1945-11-13
•
Granted: 1950-11-14
•
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 08:39
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
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1704082A
Cited
US1598867A
Cited
US1934385A
Cited
US1961905A
Cited
US1907454A
Cited
US2168726A
Cited
US2160281A
Cited
US2336844A
Cited
US2340396A
Cited
US2321097A
Cited
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 |