US4536433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slip resistant absorbent pad
Assignee: MEGATECH Corp 25 ARDEN ROAD DENVILLE NJ 07834 A CORP OF NJ
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Filing: 1983-09-16
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Granted: 1985-08-20
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Expires: 2003-09-16
Abstract
Abstract A slip resistant article such as an underpad comprises a moisture-absorbent layer and a water-impervious layer. One surface of the water-impervious layer is in contact with a mattress seat of a wheelchair and the like articles, and is treated with a material which has a high coefficient of friction to prevent the pad from slipping or sliding out of position relative to the surface of such articles when the patient moves about.
Inventors
- 👤 Zsigmond L. Sagi
- 👤 Craig R. Hof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:33
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/12; A; A47; A47K; A47K3/00; A47K3/001; A47K3/002; A61; A61F; A61F5/00; A61F5/48; A61F5/485; B32B27/06; B32B27/08; B32B27/32; A61F13/00; A61F13/15; A61F13/51; A61F2013/51097; B32B2255/00; B32B2255/10; B32B2307/00; B32B2307/70; B32B2307/726; B32B2307/744; Y; Y10; Y10S; Y10S5/00; Y10S5/924; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/31504; Y10T428/31801
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
51 words
A slip resistant article comprising a layer of moisture-absorbent material, water-impervious layer overlying said moisture-absorbent layer and a layer of a wax having a needle penetration value of from about 5 to about 70 and a melting point of from about 150° F. to about 200° F. on said water-impervious layer.
Claim 2
Dependent Claim
51 words
A slip resistant article comprising a layer of moisture-absorbent material, water-impervious layer overlying said moisture-absorbent layer and a layer of a wax having a needle penetration value of from about 5 to about 70 and a melting point of from about 150° F. to about 200° F. on said water-impervious layer.
Claim 3
Dependent Claim
14 words
An article as in claim 1 wherein said water-impervious layer is made of plastic.
Claim 4
Dependent Claim
57 words
A slip resistant article comprising a layer of moisture-absorbent material, water-impervious layer overlying said moisture-absorbent layer, said water-impervious layer having applied to one surface thereof, at a plurality of spaced areas, a wax having a needle penetration of from about 5 to about 70 and a melting point of from about 150° F. to about 200° F.
Claim 5
Dependent Claim
57 words
A slip resistant article comprising a layer of moisture-absorbent material, water-impervious layer overlying said moisture-absorbent layer, said water-impervious layer having applied to one surface thereof, at a plurality of spaced areas, a wax having a needle penetration of from about 5 to about 70 and a melting point of from about 150° F. to about 200° F.
Claim 6
Dependent Claim
14 words
An article as in claim 3 wherein said water-impervious layer is made of plastic.
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) | 1988-08-19 | 1989-02-18 | 1989-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-19 | 1993-02-18 | 1993-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-19 | 1997-02-18 | 1997-08-20 | $7700.00 | Window Closed / Lapsed |