US2920610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary internal combustion engine
Assignee: IFP Energies nouvelles
•
Filing: 1957-10-08
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Granted: 1960-01-12
•
Expires: 1977-10-08
Abstract
No abstract record available.
Inventors
- 👤 Breelle Yves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:17
CPC Classifications
F; F01; F01C; F01C1/00; F01C1/08; F01C1/12; F01C1/14; F01C1/20; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; F02B75/12; F02B2075/125; F02B2730/00; F02B2730/05; F02B53/00; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE22818E
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US902225A
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GB159060A
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US1856839A
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GB397352A
Cited
US2088121A
Cited
US2018391A
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US2070631A
Cited
US2275205A
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US2690164A
Cited
US2742882A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |