US3050274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tilting rotor head system
Assignee: RTX Corp
•
Filing: 1959-10-01
•
Granted: 1962-08-21
•
Expires: 1979-10-01
Abstract
No abstract record available.
Inventors
- 👤 Frank L Haight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:03
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/52; B64C27/22; B64C27/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB444095A
Cited
US2405777A
Cited
US2424769A
Cited
US2517509A
Cited
US2629570A
Cited
US2623597A
Cited
US2549886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |