US4164798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat cushion
Assignee: LONDON L GRAY 920 NORTH MAIN STREET MOORESVILLE NC 28115
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Filing: 1976-07-23
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Granted: 1979-08-21
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Expires: 1996-07-23
Abstract
Abstract The present invention comprises a seat cushion for preventing excessive pressure on the coccyx of a person sitting on the cushion; the cushion is made from a seat pad having a casing with a resilient cushioning element positioned within; the cushioning element has a recessed portion in the rear center so as to be in underlying relationship to the coccyx; the casing is free of a recessed portion and provides nominal support for the coccyx.
Inventors
- 👤 Joseph T. Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:04
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/021; A47C7/029; Y; Y10; Y10S; Y10S5/00; Y10S5/924; Y10S5/925
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
109 words
A seat cushion for preventing excessive pressure on the coccyx of a person sitting on said cushion, said cushion consisting essentially of a seat pad having a casing, said casing having positioned therein a resilient cushioning element, said cushioning element having a recessed portion therein, said recessed portion located in the rear center portion of said cushioning element so as to be in underlying relationship to the coccyx, said casing being free of a recessed portion and providing means for nominally supporting the coccyx, the surface of said casing which comes in contact with the person sitting on said seat cushion consisting essentially of a fluffy, moisture-absorbing fibrous material.
Claim 2
Dependent Claim
109 words
A seat cushion for preventing excessive pressure on the coccyx of a person sitting on said cushion, said cushion consisting essentially of a seat pad having a casing, said casing having positioned therein a resilient cushioning element, said cushioning element having a recessed portion therein, said recessed portion located in the rear center portion of said cushioning element so as to be in underlying relationship to the coccyx, said casing being free of a recessed portion and providing means for nominally supporting the coccyx, the surface of said casing which comes in contact with the person sitting on said seat cushion consisting essentially of a fluffy, moisture-absorbing fibrous material.
Claim 3
Dependent Claim
44 words
The seat cushion of claim 1, wherein a back rest is attached to said seat pad, said back rest consisting essentially of a casing having positioned therein a resilient cushioning element, said back rest providing means for preventing substantial movement of said seat pad.
Claim 4
Dependent Claim
35 words
The seat cushion of claim 1, wherein said recessed portion of said resilient cushioning element has a width of from about 2 to 6 inches and a length of from about 3 to 8 inches.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-08-20 | 1983-02-19 | 1983-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-08-20 | 1987-02-19 | 1987-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-08-20 | 1991-02-19 | 1991-08-21 | $7700.00 | Window Closed / Lapsed |