US2749060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airplane wing
Assignee: Boeing Co
•
Filing: 1952-07-01
•
Granted: 1956-06-05
•
Expires: 1972-07-01
Abstract
No abstract record available.
Inventors
- 👤 Keith G Brady
- 👤 Holden W Withington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:11
CPC Classifications
B; B64; B64C; B64C3/00; B64C3/38; B64C3/44; B64C3/48; Y; Y02; Y02T; Y02T50/00; Y02T50/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2563453A
Cited
US1635687A
Cited
US1813485A
Cited
US1890059A
Cited
US2022806A
Cited
US2608364A
Cited
US2650047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |