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US3474813A
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Flow control device for multi-conduit structures
Assignee: Safran Aircraft Engines SAS
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Filing: 1964-12-03
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Granted: 1969-10-28
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Expires: 1984-12-03
Abstract
No abstract record available.
Inventors
- 👤 Pierre Servanty
- 👤 Paul Joseph Adrien Chaumette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:04
CPC Classifications
G; G21; G21C; G21C19/00; G21C19/02; G21C19/04; F; F02; F02C; F02C7/00; F02C7/04; F02K; F02K1/00; F02K1/28; F15; F15B; F15B21/00; F15D; F15D1/00; G21C15/00; G21C15/02; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y02T; Y02T50/00; Y02T50/60; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2273
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2213121A
Cited
US2265737A
Cited
US2793493A
Cited
US2894892A
Cited
US2692800A
Cited
GB759659A
Cited
US2948148A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |