Patent US5352216A successfully refreshed from Google Patents.
US5352216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stretch fabric for medical use
Assignee: Alcare Co Ltd
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Filing: 1992-11-18
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Granted: 1994-10-04
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Expires: 2012-11-18
Abstract
Abstract A composite stretch fabric is disclosed that is comprised of a laminate of three layers, the center layer being comprised of a web of a nonwoven polyurethane resin with a basis weight in the range of 50-250 g/m 2 and an air permeability of at least 10 cc/sec/cm 2 with stretchable fabric layers adhered to each side thereof, one of which can be a nylon pile and the other of which is a double knit fabric that can be of porous, hollow fiber for sweat absorption, the composite can also be embossed.
Inventors
- 👤 Katuaki Shiono
- 👤 Koji Usukura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:17
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; A; A61; A61F; A61F13/00; A61F13/01; A61F13/01034; B32B5/02; B32B5/022; B32B5/024; B32B5/026; B32B5/04; B32B7/00; B32B7/04; B32B7/12; D; D06; D06M; D06M17/00; D06M17/04; D06M17/06; D06M17/10; A61F2013/00089; A61F2013/00119; A61F2013/00131; A61F2013/00144; A61F2013/00153; A61F2013/00187; A61F2013/00238; A61F2013/00242; A61F2013/00246; A61F2013/00361; A61F2013/00727; A61F2013/00731; A61F2013/00744; A61F2013/00855; B32B2250/00; B32B2250/03; B32B2250/20; B32B2262/00; B32B2262/02; B32B2262/0246; B32B2262/0261; B32B2262/0276; B32B2262/0292; B32B2262/06; B32B2262/062; B32B2262/067; B32B2307/00; B32B2307/70; B32B2307/72; B32B2307/726; B32B2437/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
143 words
A composite stretch fabric material for medical use comprising a nonwoven fabric layer having opposed first and second sides and being formed of a spun elastomeric resin arranged in a random web of fibers, said nonwoven fabric layer being formed of a polyurethane resin, said nonwoven layer being of a weight per unit area in a range of about 50-250 g/m 2 and having an air permeability rate per unit area of at least 10 cc/sec/cm 2 , a first stretchable fabric layer laminated to the first side of said nonwoven fabric layer, and a second stretchable fabric layer laminated to the second side of said nonwoven fabric layer, said composite material formed by said first and second stretchable fabric layers and said nonwoven fabric layer, said composite material further being air permeable throughout all layers thereof and being elastic in all directions.
Claim 2
Dependent Claim
143 words
A composite stretch fabric material for medical use comprising a nonwoven fabric layer having opposed first and second sides and being formed of a spun elastomeric resin arranged in a random web of fibers, said nonwoven fabric layer being formed of a polyurethane resin, said nonwoven layer being of a weight per unit area in a range of about 50-250 g/m 2 and having an air permeability rate per unit area of at least 10 cc/sec/cm 2 , a first stretchable fabric layer laminated to the first side of said nonwoven fabric layer, and a second stretchable fabric layer laminated to the second side of said nonwoven fabric layer, said composite material formed by said first and second stretchable fabric layers and said nonwoven fabric layer, said composite material further being air permeable throughout all layers thereof and being elastic in all directions.
Claim 3
Dependent Claim
42 words
The composite stretch fabric material according to claim 1 wherein one of said first and second stretchable fabric layers includes a nylon pile fabric layer, and the other of said first and second stretchable fabric layers includes a sweat-absorbing evaporating stretch fabric.
Claim 4
Dependent Claim
29 words
The composite stretch fabric material according to claim 2 wherein the sweat-absorbing evaporating stretch fabric is a double knit fabric formed of a fabric knitted from porous hollow fibers.
Claim 5
Dependent Claim
19 words
The composite stretch fabric material according to claim 2 wherein the sweat-absorbing evaporating stretch fabric is double knit fabric.
Claim 6
Dependent Claim
28 words
The composite stretch fabric material according to claim 2 wherein said nonwoven fabric layer has a surface embossed with a rhombus pattern over at least a portion thereof.
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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) | 1997-10-03 | 1998-04-04 | 1998-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-03 | 2002-04-04 | 2002-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-03 | 2006-04-04 | 2006-10-04 | $7700.00 | Window Closed / Lapsed |