US3121546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft including a plurality of power plants and a plurality of rotary propellers
Assignee: Safran Transmission Systems SAS
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Filing: 1962-01-25
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Granted: 1964-02-18
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Expires: 1982-01-25
Abstract
No abstract record available.
Inventors
- 👤 Bruyere Marcel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:55
CPC Classifications
B; B64; B64D; B64D35/00; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19079; Y10T74/19088
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
IN AN AIRCRAFT, THE COMBINATION OF A WING HAVING A LONGITUDINAL PLANE OF SYMMETRY; AT LEAST TWO POWER PLANTS MOUNTED ON SAID WING ON OPPOSITE SIDES OF SAID PLANE OF SYMMETRY, RESPECTIVELY, EACH OF SAID POWER PLANTS HAVING AN OUTPUT SHAFT; AT LEAST TWO ROTARY PROPELLERS CARRIED BY SAID WING ON OPPOSITE SIDES OF SAID PLANE OF SYMMETRY, RESPECTIVELY, SAID PROPELLERS BEING OPERATIVELY CONNECTED WITH SAID OUTPUT SHAFTS, RESPECTIVELY; A FLEXIBLE ROTATABLE SHAFT MADE OF A SINGLE PIECE EXTENDING IN SAID WING TRANSVERSELY TO SAID LONGITUDINAL PLANE OF SYMMETRY;
Claim 2
Dependent Claim
89 words
IN AN AIRCRAFT, THE COMBINATION OF A WING HAVING A LONGITUDINAL PLANE OF SYMMETRY; AT LEAST TWO POWER PLANTS MOUNTED ON SAID WING ON OPPOSITE SIDES OF SAID PLANE OF SYMMETRY, RESPECTIVELY, EACH OF SAID POWER PLANTS HAVING AN OUTPUT SHAFT; AT LEAST TWO ROTARY PROPELLERS CARRIED BY SAID WING ON OPPOSITE SIDES OF SAID PLANE OF SYMMETRY, RESPECTIVELY, SAID PROPELLERS BEING OPERATIVELY CONNECTED WITH SAID OUTPUT SHAFTS, RESPECTIVELY; A FLEXIBLE ROTATABLE SHAFT MADE OF A SINGLE PIECE EXTENDING IN SAID WING TRANSVERSELY TO SAID LONGITUDINAL PLANE OF SYMMETRY;
References Cited (Backward Citations)
GB345910A
Cited
US2178725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-17 | 1967-08-19 | 1968-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-17 | 1971-08-19 | 1972-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-17 | 1975-08-19 | 1976-02-18 | $7700.00 | Window Closed / Lapsed |