Patent US2825202A successfully refreshed from Google Patents.
US2825202A
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US
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Pipes traversed by pulsating flow gases
Assignee: Safran Aircraft Engines SAS
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Filing: 1951-06-05
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Granted: 1958-03-04
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Expires: 1971-06-05
Abstract
No abstract record available.
Inventors
- 👤 Bertin Jean
- 👤 Sarrazin Paul
- 👤 Foll Jean Le
- 👤 Francois G Paris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:57
CPC Classifications
F; F02; F02K; F02K7/00; F02K7/02; F02K7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR384939A
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FR412478A
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US1411226A
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FR844442A
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US2342262A
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US2573697A
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US2613496A
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US2587100A
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US2542756A
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FR928866A
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US2610064A
Cited
US2687614A
Cited
US2543758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-03 | 1961-09-02 | 1962-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-03 | 1965-09-02 | 1966-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-03 | 1969-09-02 | 1970-03-04 | $7700.00 | Window Closed / Lapsed |