US4499131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reusable moisture impervious underpad
Assignee: SHELTON ALBERT
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Filing: 1983-03-17
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Granted: 1985-02-12
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Expires: 2003-03-17
Abstract
Abstract An underpad for use in a hospital-like setting is disclosed herein. In these situations it is desirable to minimize moisture or fluid penetration from one side of the pad to the other side, as for example, in situations where a patient may be incontinent. The pad can be repeatably washed and dried and includes at least two layers of materials secured to each other. One layer is a facing or fabric ply and the other layer comprises a moisture-resistant neoprene ply which resists degradation after repeated institutional washings and drying at temperatures on the order of 225° F.
Inventors
- 👤 Frank A. Knox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:58
CPC Classifications
B; B32; B32B; B32B25/00; B32B25/10; A; A61; A61F; A61F5/00; A61F5/48; A61F5/485; B32B25/16; B32B3/00; B32B3/02; B32B3/04; B32B5/00; B32B5/22; B32B5/24; B32B5/26; A61F13/00; A61F13/15; A61F13/15203; A61F13/15268; A61F13/53; A61F13/534; A61F13/539; A61F13/51; A61F13/514; A61F13/51401; A61F2013/51409; A61F2013/51435; A61F2013/53445; A61F2013/53966; B32B2262/00; B32B2262/06; B32B2262/062; B32B2307/00; B32B2307/70; B32B2307/726; B32B2307/7265; B32B2317/00; B32B2317/10; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/24; Y10T428/24033; Y10T428/2419; Y10T428/24215; Y10T428/24231; Y10T428/24777; Y10T428/24785
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
146 words
An underpad for use in situations where it is desirable to minimize moisture or fluid penetration from one side of the pad to the other side and which is repeatably washable and dryable said pad exhibiting substantial degradation resistance over two hundred (200) washing and drying operations, said pad comprising: at least two layers of material secured to each other to form the pad; one layer comprising a facing fabric ply which includes two plies of cotton flannel and the other layer comprising a moisture-resistant neoprene-coated nylon ply which resists degradation after repeated institutional washings and dryings at temperatures on the order of 225° F., said facing ply and said moisture-resistant ply layer secured to each other about the periphery of the pad, and said facing layer overlying the edge of said moisture-resistant layer so as to form a hem about the periphery of said pad.
Claim 2
Dependent Claim
146 words
An underpad for use in situations where it is desirable to minimize moisture or fluid penetration from one side of the pad to the other side and which is repeatably washable and dryable said pad exhibiting substantial degradation resistance over two hundred (200) washing and drying operations, said pad comprising: at least two layers of material secured to each other to form the pad; one layer comprising a facing fabric ply which includes two plies of cotton flannel and the other layer comprising a moisture-resistant neoprene-coated nylon ply which resists degradation after repeated institutional washings and dryings at temperatures on the order of 225° F., said facing ply and said moisture-resistant ply layer secured to each other about the periphery of the pad, and said facing layer overlying the edge of said moisture-resistant layer so as to form a hem about the periphery of said pad.
Claim 3
Dependent Claim
13 words
An under pad as in claim 1, wherein said flannel is double-thick flannel.
References Cited (Backward Citations)
US3427670A
Cited
US4278719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-12 | 1988-08-13 | 1989-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-12 | 1992-08-13 | 1993-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-12 | 1996-08-13 | 1997-02-12 | $7700.00 | Window Closed / Lapsed |