Patent US2585676A successfully refreshed from Google Patents.
US2585676A
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US
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Aircraft wing and flap with boundary layer control
Assignee: Individual
•
Filing: 1948-07-29
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Granted: 1952-02-12
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Expires: 1968-07-29
Abstract
No abstract record available.
Inventors
- 👤 Poisson-Quinton Philippe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:49
CPC Classifications
B; B64; B64C; B64C21/00; B64C21/02; B64C21/025; B64C2230/00; B64C2230/04; B64C2230/06; B64D; B64D33/00; B64D33/02; B64D2033/0226; Y; Y02; Y02T; Y02T50/00; Y02T50/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1725914A
Cited
GB484405A
Cited
GB491483A
Cited
US2277175A
Cited
US2406919A
Cited
US2453721A
Cited
US2348253A
Cited
US2390161A
Cited
US2463864A
Cited
US2517524A
Cited
US2496565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |