US2729059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous flow internal combustion engines, in particular aircraft engines
Assignee: Office National d'Études et de Recherches Aérospatiales
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Filing: 1950-05-29
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Granted: 1956-01-03
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Expires: 1970-05-29
Abstract
No abstract record available.
Inventors
- 👤 Foure Claude
- 👤 Reingold Lucien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:21
CPC Classifications
F; F23; F23R; F23R3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2563270A
Cited
US2529506A
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US2520388A
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US2482505A
Cited
US2508420A
Cited
US2625788A
Cited
US2640321A
Cited
US2572723A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-02 | 1959-07-04 | 1960-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-02 | 1963-07-04 | 1964-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-02 | 1967-07-04 | 1968-01-03 | $7700.00 | Window Closed / Lapsed |