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US3229935A Expired / Lapsed US ⏱️ 0.0 years remaining

Aircraft wing construction

Assignee: Individual
•
Filing: 1962-12-06
•
Granted: 1966-01-18
•
Expires: 1982-12-06
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Abstract

No abstract record available.

Inventors

  • 👤 August T Bellanca

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 13:30
CPC Classifications
B; B64; B64C; B64C3/00; B64C3/26; E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/24

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 137 words
AN AIRCRAFT WING COMPRISING A LONGITUDINALLY EXTENDING OUTER SHELL OF TRANSVERSE AIRFOIL CONFIGURATION INCLUDING UPPER AND LOWER WALLS, A PLURALITY OF TRANSVERSELY SPACED LONGITUDINALLY EXTENDING TRIANGULAR PRISMATIC INNER SHELLS DISPOSED IN SAID OUTER SHELL AND HAVING TRANSVERSELY SPACED SIDE WALLS, THE APICES OF DIFFERENT OF SAID PRISMATIC SHELLS BEING ALTERNATELY DIRECTED TOWARD SAID UPPER AND LOWER WALLS RESPECTIVELY AND THE BASES OF RESPECTIVE THEREOF BEING SPACED FROM AND CONFRONTING THE OPPOSITE OF SAID UPPER AND LOWER WALLS, AND A COHESIVE RIGID LIGHTWEIGHT CELLULAR CORE SUBSTANTIALLY FILLING THE SPACES DELINEATED BY THE OUTER FACES OF SAID PRISMATIC SHELLS AND THE INNER FACES OF SAID OUTER SHELL AND ADHERING THERETO TO DEFINE A TRUSS STRUCTURE FORMED OF TRIANGULAR SECTIONS CONSTITUTED OF SUBSTANTIALLY LINEAR ELEMENTS INCLUDING RESPECTIVE PAIRS OF SAID CONFRONTING WALLS AND BASE AND CORRESPONDINGLY SANDWICHED CELLULAR CORE SECTIONS.

References Cited (Backward Citations)

US1465653A Cited
US2427853A Cited
US2681562A Cited
US2693922A Cited
GB720956A Cited
US3078202A Cited
FR1187951A Cited
GB871625A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-01-17 1969-07-19 1970-01-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-01-17 1973-07-19 1974-01-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-01-17 1977-07-19 1978-01-18 $7700.00 Window Closed / Lapsed

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