US2941752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft with retractable auxiliary airfoil
Assignee: RTX Corp
•
Filing: 1953-12-31
•
Granted: 1960-06-21
•
Expires: 1973-12-31
Abstract
No abstract record available.
Inventors
- 👤 Michael E Gluhareff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:54
CPC Classifications
B; B64; B64C; B64C5/00; B64C5/10; B64C5/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2743888A
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FR1083557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |