Patent US4383342A successfully refreshed from Google Patents.
US4383342A
Expired / Lapsed
US
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Mattress for a sitting or lying person
Assignee: Individual
•
Filing: 1981-03-13
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Granted: 1983-05-17
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Expires: 2001-03-13
Abstract
Abstract A molded elastic mattress is formed with a plurality of laterally directed ribs for coming into contact with a human body. The ribs are tilted with respect to the longitudinal axis to relieve pressure on the dorsal spine.
Inventors
- 👤 Peter Forster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:55
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/14; A47C27/142; A47C27/146; A47C27/15; A47C7/00; A47C7/36; A47C7/40; A47C7/405; A47C7/46; A61; A61H; A61H1/00; A61H1/02; A61H1/0218; A61H7/00; A61H7/001; A61H2201/00; A61H2201/12; A61H2201/1253; A61H2201/1261; A61H2201/1284; Y; Y10; Y10S; Y10S5/00; Y10S5/944; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/2457
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
110 words
A device for supporting a reclining human body comprising a longitudinally extending pad made of elastic material and having a series of lateral rows of raised ribs for supporting the human body, the free ends of the ribs disposed below the lumbar region of the human body all being tilted relative to the longitudinal axis of said pad toward the legs of the human body and the free ends of the ribs disposed above the lumbar region all being tilted relative to the longitudinal axis of said pad toward the head of the human body such that a tensile force is exerted on the spinal column of the human body.
Claim 2
Independent Claim
110 words
A device for supporting a reclining human body comprising a longitudinally extending pad made of elastic material and having a series of lateral rows of raised ribs for supporting the human body, the free ends of the ribs disposed below the lumbar region of the human body all being tilted relative to the longitudinal axis of said pad toward the legs of the human body and the free ends of the ribs disposed above the lumbar region all being tilted relative to the longitudinal axis of said pad toward the head of the human body such that a tensile force is exerted on the spinal column of the human body.
Claim 3
Dependent Claim
26 words
The device of claim 1, wherein the free ends of the ribs contacting the lumbar region are substantially perpendicular to the longitudinal axis of said pad.
Claim 4
Dependent Claim
24 words
The device of claim 1, further comprising a wedge-shaped pad means for overlying the ribs beneath the cervical vertebra region of the human body.
Claim 5
Dependent Claim
12 words
The device of claim 1, wherein said pad is a one-piece surface.
Claim 6
Dependent Claim
20 words
The device of claim 4, wherein said pad is in the form of a removable module in a bed mattress.
Claim 7
Dependent Claim
20 words
The device of claim 1, wherein said pad is in the form of a removable module in a bed mattress.
Claim 8
Independent Claim
77 words
A device for supporting the back of a sitting human body comprising a vertically disposed pad made of elastic material and having a series of lateral rows of raised ribs for supporting the back, the free ends of the ribs beginning at and above the lumbar region of the human body all being tilted upward toward the head of the human body such that a tensile force is exerted on the spinal column of the human body.
Claim 9
Independent Claim
77 words
A device for supporting the back of a sitting human body comprising a vertically disposed pad made of elastic material and having a series of lateral rows of raised ribs for supporting the back, the free ends of the ribs beginning at and above the lumbar region of the human body all being tilted upward toward the head of the human body such that a tensile force is exerted on the spinal column of the human body.
Claim 10
Dependent Claim
12 words
The device of claim 7, wherein said pad is a one-piece surface.
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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) | 1986-05-16 | 1986-11-15 | 1987-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-16 | 1990-11-15 | 1991-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-16 | 1994-11-15 | 1995-05-17 | $7700.00 | Window Closed / Lapsed |