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US4754987A Expired / Lapsed US ⏱️ 0.0 years remaining

Wheelchair

Assignee: Individual
•
Filing: 1986-06-09
•
Granted: 1988-07-05
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Expires: 2006-06-09
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Abstract

Abstract The vehicle has a pair of spaced apart side frames disposed and spaced apart in parallel relationship. Each of the side frames is provided with a caster wheel and a drive wheel. A seat base assembly is provided above the frame assemblies and is interconnected on each side with one of the frame assemblies. A seat back assembly, having an upper end and a lower end, is pivotally and adjustably interconnected at its lower end to each of the side frames. In a preferred embodiment, the transport vehicle is collapsible for storage and has a removable seat base insert, adjustable and removable leg rests and arm rests, a head restraint, a torso restraint, a sun visor, and a removable enclosure for inclement weather.

Inventors

  • 👤 Ronald H. Williams

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 08:44
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/006; A61G5/08; A61G5/0808; A61G5/0816; A61G5/0825; A61G5/0891; A61G5/10; A61G5/1002; A61G5/1043; A61G5/1091; A61G5/12; A61G5/121; A61G5/125; A61G5/128

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 86 words
A cover assembly for a wheeled transport vehicle intended for a human occupant and provided with seat means operably interconnected with two rear drive wheels and two front casters, said cover assembly comprising: a cover support assembly removably interconnected with each side of said seat means and extending therebetween a predetermined distance above said seat means; a flexible transparent cover removably mounted over said cover support assembly and interconnected therewith; and wheel cover means for enclosing the upper portion of each of said two rear wheels.
Claim 2
Dependent Claim 86 words
A cover assembly for a wheeled transport vehicle intended for a human occupant and provided with seat means operably interconnected with two rear drive wheels and two front casters, said cover assembly comprising: a cover support assembly removably interconnected with each side of said seat means and extending therebetween a predetermined distance above said seat means; a flexible transparent cover removably mounted over said cover support assembly and interconnected therewith; and wheel cover means for enclosing the upper portion of each of said two rear wheels.
Claim 3
Dependent Claim 34 words
The cover assembly of claim 1 wherein said flexible transparent cover further comprises fastening means disposed at predetermined spaced locations around the periphery of said cover assembly for selective interconnection with said seat means.
Claim 4
Dependent Claim 29 words
The cover assembly of claim 1 further comprising at least one handle interconnected with said cover support assembly permitting manual control of the motion of said wheeled transport vehicle.

References Cited (Backward Citations)

US1933102A Cited
US4098536A Cited
US4275921A Cited
US4389057A Cited
GB2168018A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-07-05 1992-01-04 1992-07-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-07-05 1996-01-04 1996-07-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-07-05 2000-01-04 2000-07-05 $7700.00 Window Closed / Lapsed

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