US4506929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lumbar ridge supporting
Assignee: HEALTHCORE Ltd
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Filing: 1982-07-26
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Granted: 1985-03-26
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Expires: 2002-07-26
Abstract
Abstract A covered cushion about 15" wide and 13" high of injection foam material is formed convexly in the vertical plane with a central lumbar ridge about 2 3/16" wide and slightly less than an inch thick. The top of the cover carries a handle, and the back of the cover is formed with an opening for allowing admission and removal of the cushion.
Inventors
- 👤 Kirt L. Josefek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:20
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/36; A47C7/40; A47C7/42; A47C7/425
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A lumbar support cushion comprising a resilient material approximately thirteen inches high and having a generally convex curvature in the vertical direction and a generally concave curvature in the horizontal direction, and lumbar ridge means disposed centrally in said cushion and extending vertically from just above the base of the cushion to the top of the cushion for mating engagement within the lumbar spinal recess formed by the muscles attached to the bilateral transverse processes of the precise spine for providing lumbar support which allows the muscles to maintain normal lordodic curvature, said lumbar ridge means being approximately two inches wide and twelve inches high and having a generally convex curvature in both the vertical and horizontal directions.
Claim 2
Dependent Claim
118 words
A lumbar support cushion comprising a resilient material approximately thirteen inches high and having a generally convex curvature in the vertical direction and a generally concave curvature in the horizontal direction, and lumbar ridge means disposed centrally in said cushion and extending vertically from just above the base of the cushion to the top of the cushion for mating engagement within the lumbar spinal recess formed by the muscles attached to the bilateral transverse processes of the precise spine for providing lumbar support which allows the muscles to maintain normal lordodic curvature, said lumbar ridge means being approximately two inches wide and twelve inches high and having a generally convex curvature in both the vertical and horizontal directions.
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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) | 1988-03-25 | 1988-09-24 | 1989-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-25 | 1992-09-24 | 1993-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-25 | 1996-09-24 | 1997-03-26 | $7700.00 | Window Closed / Lapsed |