Patent FR2267801A1 successfully refreshed from Google Patents.
US2948148A
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Supersonic wind-tunnel for a variable mach number
Assignee: Safran Aircraft Engines SAS
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Filing: 1955-12-20
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Granted: 1960-08-09
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Expires: 1975-12-20
Abstract
No abstract record available.
Inventors
- 👤 M G De Jurquet De La Sal Louis
- 👤 Jean H Bertin
- 👤 Kadosch Marcel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:13
CPC Classifications
H; H05; H05K; H05K13/00; F; F15; F15C; F15C1/00; F15D; F15D1/00; F15D1/02; F15D1/04; G; G01; G01M; G01M9/00; G01M9/02; G01M9/04; Y; Y10; Y10S; Y10S415/00; Y10S415/914
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |