US3056565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertical take-off aircraft
Assignee: Rolls Royce PLC
•
Filing: 1959-03-27
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Granted: 1962-10-02
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Expires: 1979-03-27
Abstract
No abstract record available.
Inventors
- 👤 Griffith Alan Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:06
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0016; B64C29/0025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2899149A
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US2501078A
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US2650666A
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US2514408A
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US2843340A
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US2884633A
Cited
US2912188A
Cited
US2986359A
Cited
US2990138A
Cited
US2844337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |