Patent US4919388A successfully refreshed from Google Patents.
Patent US3285540A successfully refreshed from Google Patents.
US3285540A
Expired / Lapsed
US
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Shiftable variable area wing construction
Assignee: Individual
•
Filing: 1964-06-15
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Granted: 1966-11-15
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Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 Lee Shao-Tang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:34
CPC Classifications
B; B64; B64C; B64C3/00; B64C3/38; B64C3/54
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
94 words
IN AN AIRCRAFT, A FUSELAGE AND AN EXPANSIBLE WING PROJECTING LATERALLY THEREFROM, SAID WING COMPRISING THREE SUBSTANTIALLY FULL LENGTH SEGMENTS, SAID SEGMENTS CONSTITUTING A LEADING SEGMENT, AN INTERMEDIATE SEGMENT, AND A FOLLOWING SEGMENT, BOTH THE LEADING SEGMENT AND THE FOLLOWING SEGMENT BEING TELESCOPICALLY AND SLIDABLY ENGAGED WITH INTERMEDIATE SEGMENT, MEANS FOR SIMULTANEOUSLY EXTENDING AND RETRACTING THE LEADING AND FOLLOWING SEGMENTS RELATIVE TO THE INTERMEDIATE SEGMENT, MEANS FOR SELECTIVELY LOCKING BOTH THE LEADING AND FOLLOWING SEGMENTS TO THE FUSELAGE, AND MEANS FOR EFFECTING A MOVEMENT OF THE ENTIRE WING AS A UNIT ALONG THE FUSELAGE.
References Cited (Backward Citations)
US1558090A
Cited
US1653903A
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US2350809A
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US2487465A
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US2463351A
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US2858091A
Cited
US2814454A
Cited
US3004737A
Cited
US3000533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |