US2864235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust gas ejector tubes in association with explosion engines or internal combustion engines
Assignee: Safran Aircraft Engines SAS
•
Filing: 1953-03-06
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Granted: 1958-12-16
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Expires: 1973-03-06
Abstract
No abstract record available.
Inventors
- 👤 Francois G Paris
- 👤 Foll Jean Le
- 👤 Henri L P Meulien
- 👤 Jean H Bertin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:43
CPC Classifications
F; F01; F01N; F01N5/00; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US939844A
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FR517405A
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FR556947A
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US1704297A
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US1938537A
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US2178297A
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US2396911A
Cited
US2401941A
Cited
US2383385A
Cited
FR916985A
Cited
US2583651A
Cited
US2653585A
Cited
US2750733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |