US2769602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airplane wing with stabilizing leadingedge chord-extensions
Assignee: Individual
•
Filing: 1952-07-24
•
Granted: 1956-11-06
•
Expires: 1972-07-24
Abstract
No abstract record available.
Inventors
- 👤 Furlong George Chester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:39
CPC Classifications
B; B64; B64C; B64C17/00; B64C3/00; B64C3/38; B64C3/54; Y; Y02; Y02T; Y02T50/00; Y02T50/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2120568A
Cited
US2070705A
Cited
US2358985A
Cited
DE724312C
Cited
US2357680A
Cited
US2323542A
Cited
US2549045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |