Patent US3084888A successfully refreshed from Google Patents.
US3084888A
Expired / Lapsed
US
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Vtol aircraft
Assignee: Focke Wulf GmbH
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Filing: 1961-10-13
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Granted: 1963-04-09
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Expires: 1981-10-13
Abstract
No abstract record available.
Inventors
- 👤 Hertel Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:49
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0016; B64C29/0033
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
IN AN AEROPLANE, A FUSELAGE, A PLURALITY OF LIFTING JET MEANS, MEANS FOR MOUNTING SAID JET MEANS RELATIVE TO SAID FUSELAGE IN A CONDITION FOR LIFTING OPERATION, MEANS FOR MOUNTING SAID JET MEANS WITHIN SAID FUSELAGE IN A STOWAGE CONDITION AND MEANS FOR MOVING SAID JET MEANS FROM ONE OF SAID CONDITIONS TO THE OTHER OF SAID CONDITIONS.
Claim 2
Dependent Claim
58 words
IN AN AEROPLANE, A FUSELAGE, A PLURALITY OF LIFTING JET MEANS, MEANS FOR MOUNTING SAID JET MEANS RELATIVE TO SAID FUSELAGE IN A CONDITION FOR LIFTING OPERATION, MEANS FOR MOUNTING SAID JET MEANS WITHIN SAID FUSELAGE IN A STOWAGE CONDITION AND MEANS FOR MOVING SAID JET MEANS FROM ONE OF SAID CONDITIONS TO THE OTHER OF SAID CONDITIONS.
References Cited (Backward Citations)
US2052086A
Cited
CH189294A
Cited
FR1029559A
Cited
US2885159A
Cited
US2977071A
Cited
US2989269A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |