Patent US5503459A successfully refreshed from Google Patents.
US5503459A
Expired / Lapsed
US
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Wheelchair back for kyphotic patients
Assignee: Individual
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Filing: 1994-08-08
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Granted: 1996-04-02
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Expires: 2014-08-08
Abstract
Abstract There is provided a wheelchair back support adapted to specifically meet the requirements of a kyphotic patient. The support comprises an outer shell formed of a firm, pliable fabric. An inner foam padding is inserted within the outer shell. Two, longitudinally extending, resilient spaced-apart ribs are positioned at predetermined distances within the outer shell. The back is top stitched along its outer perimeter at a predetermined distance from the edge thereof to thereby achieve the specified shape.
Inventors
- 👤 Carol White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:12
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10; A61G5/12; A61G5/1054
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
108 words
An upholstered back support formed of an integral unit defining three sections and particularly adapted for placement in a wheelchair used by patients suffering from kyphosis and which comprises: an outer shell formed of a firm, pliable fabric; an inner foam padding positioned within the outer shell; two resilient, longitudinally extending ribs inserted within the outer shell at predetermined spaced-apart distances thereby dividing the back support into three sections; top stitching along the perimeter of said back support and longitudinally along an edge of each of said ribs so as to provide permanence to the shape thereof; and fasteners for removably attaching said back support to said wheelchair.
Claim 2
Dependent Claim
108 words
An upholstered back support formed of an integral unit defining three sections and particularly adapted for placement in a wheelchair used by patients suffering from kyphosis and which comprises: an outer shell formed of a firm, pliable fabric; an inner foam padding positioned within the outer shell; two resilient, longitudinally extending ribs inserted within the outer shell at predetermined spaced-apart distances thereby dividing the back support into three sections; top stitching along the perimeter of said back support and longitudinally along an edge of each of said ribs so as to provide permanence to the shape thereof; and fasteners for removably attaching said back support to said wheelchair.
Claim 3
Dependent Claim
27 words
The back support as set forth in claim 1 which is located on the wheelchair to accommodate a primary kyphosis that is limited to the thoracic spine.
Claim 4
Dependent Claim
26 words
The back support as set forth in claim 1 which is located on the wheelchair to accommodate a kyphosis that has progressed due to lumbar curvature.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-04-02 | 1999-10-02 | 2000-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-02 | 2003-10-02 | 2004-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-02 | 2007-10-02 | 2008-04-02 | $7700.00 | Window Closed / Lapsed |