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US4520056A Expired / Lapsed US ⏱️ 0.0 years remaining

Gas permeable-liquid impermeable membranes confined within a recess

Assignee: Individual
•
Filing: 1983-08-25
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Granted: 1985-05-28
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Expires: 2003-08-25
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Abstract

Abstract A glove having three layers, an outer covering layer of leather, cloth or the like, an inner lining of an insulating material such as cloth, wool, fur and an intermediate member of a thin plastic having microscopically minute pores through which gas may pass but not liquids, e.g. water. The outer and inner layers are formed into gloves as by sewing. The intermediate layer of, for example, extremely thin polyurethane, is fabricated by heat sealing the edges of the front and back blank halves together to form an integral glove member. The intermediate glove layer is telescoped into the outer glove layer and similarly, the inner lining is telescoped into the intermediate layer. Only the outer and inner layers are stitched together at the wrist portion leaving a free-standing, breathable, waterproof intermediate layer therebetween which is integral and unattached. The resulting glove structure is water resistant and air permeable.

Inventors

  • 👤 Donald Jackrel

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 06:00
CPC Classifications
A; A41; A41D; A41D19/00; A41D19/0006; A41D2300/00; A41D2300/50; A41D2300/52; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/239; Y10T428/249921; Y10T428/249953; Y10T428/249978; Y10T428/24998; Y10T428/249981

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 104 words
An article of clothing designed to surround a portion of the body comprising an outer layer, an intermediate layer, and an inner layer, said inner layer being situated within said outer layer, means for joining said inner and outer layers to define a recess within which said intermediate layer is confined, without interrupting the integrity of the intermediate layer or bonding same to either of said inner or outer layers, said intermediate layer comprising first and second gas permeable liquid impermeable membranes sealed to form an insert having the general shape of the portion of the body which the article is designed to surround.
Claim 2
Dependent Claim 104 words
An article of clothing designed to surround a portion of the body comprising an outer layer, an intermediate layer, and an inner layer, said inner layer being situated within said outer layer, means for joining said inner and outer layers to define a recess within which said intermediate layer is confined, without interrupting the integrity of the intermediate layer or bonding same to either of said inner or outer layers, said intermediate layer comprising first and second gas permeable liquid impermeable membranes sealed to form an insert having the general shape of the portion of the body which the article is designed to surround.
Claim 3
Dependent Claim 20 words
The article of claim 1, wherein said membranes are heat sealed along at least a portion of the periphery thereof.
Claim 4
Dependent Claim 13 words
The article of claim 1, wherein said layers have substantially similarly shaped portions.
Claim 5
Dependent Claim 14 words
The article of claim 1, wherein said intermediate layer comprises microscopically minute openings therein.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-05-27 1988-11-26 1989-05-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-05-27 1992-11-26 1993-05-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-05-27 1996-11-26 1997-05-28 $7700.00 Window Closed / Lapsed

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