Patent US3145000A successfully refreshed from Google Patents.
US3145000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light weight-high thermal resistant airfoil
Assignee: Individual
•
Filing: 1963-05-29
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Granted: 1964-08-18
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Expires: 1983-05-29
Abstract
No abstract record available.
Inventors
- 👤 William L Mackie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:33
CPC Classifications
B; B64; B64C; B64C3/00; Y; Y10; Y10S; Y10S165/00; Y10S165/907; Y10T; Y10T428/00; Y10T428/23; Y10T428/234; Y10T428/236; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
AN AIRFOIL CONSTRUCTION SUITABLE FOR SUPERSONIC FLIGHT COMPRISING: (A) A PAIR OF SPACED SHEET MEMBERS HAVING HIGH TENSILE STRENGTH CREATING AN OPEN END ADJACENT AN EDGE OF THE AIRFOIL; (B) A RIGID CELLULAR STRUCTURE EXTENDING BETWEEN AND BONDED TO SAID SHEET MEMBERS; (C) AN AIRFOIL EDGE SECURED IN SAID OPEN END BETWEEN SAID SHEET MEMBERS;
Claim 2
Dependent Claim
55 words
AN AIRFOIL CONSTRUCTION SUITABLE FOR SUPERSONIC FLIGHT COMPRISING: (A) A PAIR OF SPACED SHEET MEMBERS HAVING HIGH TENSILE STRENGTH CREATING AN OPEN END ADJACENT AN EDGE OF THE AIRFOIL; (B) A RIGID CELLULAR STRUCTURE EXTENDING BETWEEN AND BONDED TO SAID SHEET MEMBERS; (C) AN AIRFOIL EDGE SECURED IN SAID OPEN END BETWEEN SAID SHEET MEMBERS;
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |