US2690810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft propeller
Assignee: Office National d'Études et de Recherches Aérospatiales
•
Filing: 1948-07-15
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Granted: 1954-10-05
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Expires: 1968-07-15
Abstract
No abstract record available.
Inventors
- 👤 Doussain Robert
- 👤 Bousson Robert
- 👤 Perrier Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:14
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/02; B64C11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1967735A
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FR760098A
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US2115653A
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US2115454A
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US2235605A
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US2240873A
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US2254821A
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GB508146A
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US2278900A
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FR861292A
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US2336012A
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US2340133A
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US2400649A
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US2428970A
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US2465007A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-04 | 1958-04-05 | 1958-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-04 | 1962-04-05 | 1962-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-04 | 1966-04-05 | 1966-10-05 | $7700.00 | Window Closed / Lapsed |