US2562976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated composite body of airfoil shape
Assignee: RTX Corp
•
Filing: 1948-02-27
•
Granted: 1951-08-07
•
Expires: 1968-02-27
Abstract
No abstract record available.
Inventors
- 👤 Raymond G Winnick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:07
CPC Classifications
B; B64; B64C; B64C3/00; B64C3/26; Y; Y10; Y10T; Y10T428/00; Y10T428/16; Y10T428/163; Y10T428/164; Y10T428/167; Y10T428/31504; Y10T428/31678; Y10T428/31703
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A LAMINATED COMPOSITE ARTICLE ADAPTED TO BE BENT ABOUT AN INTERMEDIATE AXIS TO FORM THE LEADING EDGE OF AN AIRPLANE WING OR OTHER SHARPLY CURVED SURFACE COMPRISING, SPACED SURFACE SHEETS OF METAL AND AN INTERMEDIATE CORE SHEET OF WOOD CONSISTING OF A PLURALITY OF ADHESIVELY BONDED WOOD PIECES THE PIECES ALONG THE BEND AXIS HAVING THE BOND LINES THEREBETWEEN GENERALLY PARALLEL TO THE ANNULAR GROWTH LINES OF SAID PIECES AND HAVING
Claim 2
Dependent Claim
71 words
A LAMINATED COMPOSITE ARTICLE ADAPTED TO BE BENT ABOUT AN INTERMEDIATE AXIS TO FORM THE LEADING EDGE OF AN AIRPLANE WING OR OTHER SHARPLY CURVED SURFACE COMPRISING, SPACED SURFACE SHEETS OF METAL AND AN INTERMEDIATE CORE SHEET OF WOOD CONSISTING OF A PLURALITY OF ADHESIVELY BONDED WOOD PIECES THE PIECES ALONG THE BEND AXIS HAVING THE BOND LINES THEREBETWEEN GENERALLY PARALLEL TO THE ANNULAR GROWTH LINES OF SAID PIECES AND HAVING
References Cited (Backward Citations)
US1789288A
Cited
US1734826A
Cited
GB362925A
Cited
US2243432A
Cited
US2306295A
Cited
US2407867A
Cited
US2369006A
Cited
GB559528A
Cited
US2373500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |