Patent US3664598A successfully refreshed from Google Patents.
US3664598A
Expired / Lapsed
US
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Pilot support
Assignee: McDonnell Douglas Corp
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Filing: 1970-07-31
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Granted: 1972-05-23
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Expires: 1990-07-31
Abstract
Abstract AN ATTACHMENT PROVIDING DRAG ON A SHOULDER HARNESS STRAP SUFFICIENT TO PREVENT AN UNCONSCIOUS TORSO FROM SLUMPING FORWARD, YET NOT ENOUGH DRAG TO PREVENT A CONSCIOUS PILOT FROM ACHIEVING NORMAL REACH. IN ONE EMBODIMENT A FRICTION CLUTCH ON AN INERTIA REEL IS USED AND IN ANOTHER A FRICTION CLUTCH UNIT IS POSITIONED BETWEEN THE INERTIA REEL AND THE OCCUPANT.
Inventors
- 👤 Gale K Sherman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:39
CPC Classifications
B; B60; B60R; B60R22/00; B60R22/18; B60R22/185; B64; B64D; B64D25/00; B64D25/02; B64D25/06; B60R22/28; B60R2022/288
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |