US4023849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stretcher trolleys
Assignee: GD Searle LLC
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Filing: 1975-10-06
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Granted: 1977-05-17
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Expires: 1995-10-06
Abstract
Abstract A stretcher trolley wherein the height and angle can be adjusted is described herein.
Inventors
- 👤 Farkas Bethlen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:32
CPC Classifications
A; A61; A61G; A61G1/00; A61G1/04; A61G1/052; A61G1/056; A61G1/0562; A61G1/02; A61G1/0206; A61G1/0212; A61G1/0237
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A stretcher trolley comprising a patient support member; a rectangular framework for receiving said support member; a pair of rectangular subframes each pivotably attached at one end to said framework at an off-center position at either side of the center-line of said framework; a pair of wheeled, triangular carriages each pivotably connected to the other end of each of said subframes; and two pair of fluid springs, each spring attached at one end intermediate the ends of said subframes and at its other end to the ends of said framework.
Claim 2
Dependent Claim
90 words
A stretcher trolley comprising a patient support member; a rectangular framework for receiving said support member; a pair of rectangular subframes each pivotably attached at one end to said framework at an off-center position at either side of the center-line of said framework; a pair of wheeled, triangular carriages each pivotably connected to the other end of each of said subframes; and two pair of fluid springs, each spring attached at one end intermediate the ends of said subframes and at its other end to the ends of said framework.
References Cited (Backward Citations)
US3644944A
Cited
US3820838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |