US3073548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vtol aircraft with gas diversion means
Assignee: Hawker Aircraft Ltd
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Filing: 1961-01-23
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Granted: 1963-01-15
•
Expires: 1981-01-23
Abstract
No abstract record available.
Inventors
- 👤 Marsh Robert Bulkeley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:52
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0041; B64C29/0066
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
58 words
A VERTICAL TAKEOFF AIRCRAFT COMPRISING FUSELAGE, NOZZLE MEANS OPERABLE TO DIRECT STREAMS OF HIGH SPEED GASES VERTICALLY DOWNWARD ON OPPOSITE SIDES OF SAID FUSELAGE, AND MEANS MOUNTED ON THE UNDER SURFACE OF SAID FUSELAGE TO INTERCEPT THE UPWARD FLOW OF GASES REFLECTED UPWARDLY FROM THE GROUND AND DEFLECT SUCH GASES DOWNWARDLY FROM THE UNDER SURFACE OF SAID FUSELAGE.
References Cited (Backward Citations)
US2749064A
Cited
US2936972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |