Patent US3229935A successfully refreshed from Google Patents.
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
Abstract
No abstract record available.
Inventors
- 👤 August T Bellanca
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:50
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 |