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Patent US4584225A successfully refreshed from Google Patents.
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US4584225A Expired / Lapsed US ⏱️ 0.0 years remaining

Protective material and use

Assignee: Crowell Corp
•
Filing: 1983-03-21
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Granted: 1986-04-22
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Expires: 2003-03-21
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Abstract

Abstract Surface such as an airplane fuselage or wing, boat deck, floor or vehicle hood or fender, is protected by a thin foam laminate having a nonabrasive foam face laminated to a sheet of paper or other stiffening support and carrying a stratum of adhesive that adheres to, or reduces the tendency of the laminate to slide, when applied over that surface. Protective laminate can also contain volatile corrosion inhibitor (VCI) which can be incorporated in a cohesive-nonadhesive coating or in a pressure-sensitive adhesive coating. A water-repellent layer can also be applied to the outer surface of the foam laminate. A protective laminate with cohesive-nonadhesive coating can also be made anti-static, and any of the laminates can be strengthened with or made of fibers that make them very difficult to tear. A cushioning sheet having thin foam layers on both faces of a paper support, makes effective packaging for stacking layers of delicate electronic articles or the like, with a cushioning sheet separating adjacent layers.

Inventors

  • 👤 Herbert B. Adelman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 17:06
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/10; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/233; Y10T428/239; Y10T428/249921; Y10T428/249953; Y10T428/249976; Y10T428/249977; Y10T428/249978; Y10T428/249979; Y10T428/24998; Y10T428/249982; Y10T428/249983; Y10T428/28; Y10T428/2848; Y10T428/2852; Y10T428/2878

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 65 words
A package of laminated sheeting in which the sheeting has a paper layer laminated to a layer not over about 1/8 inch thick of pliable closed-cell microcellular resin foam, the foam having its outer surface coated with a cohesive-nonadhesive layer containing sufficient anti-static material to inhibit the build-up of static electricity on the sheet, the package having the sheeting tightly wrapped in an opaque wrapper.
Claim 2
Dependent Claim 65 words
A package of laminated sheeting in which the sheeting has a paper layer laminated to a layer not over about 1/8 inch thick of pliable closed-cell microcellular resin foam, the foam having its outer surface coated with a cohesive-nonadhesive layer containing sufficient anti-static material to inhibit the build-up of static electricity on the sheet, the package having the sheeting tightly wrapped in an opaque wrapper.
Claim 3
Dependent Claim 59 words
A laminated protective sheeting having a paper layer, a layer not over 1/8 inch thick of pliable closed-cell micro-cellular resin foam, adhesive material securely bonding the micro-cellular foam layer to the paper layer, and the foam having its outer surface coated with a cohesive-nonadhesive layer containing sufficient potassium formate to inhibit the build-up of static electricity on the sheet.
Claim 4
Dependent Claim 59 words
A laminated protective sheeting having a paper layer, a layer not over 1/8 inch thick of pliable closed-cell micro-cellular resin foam, adhesive material securely bonding the micro-cellular foam layer to the paper layer, and the foam having its outer surface coated with a cohesive-nonadhesive layer containing sufficient potassium formate to inhibit the build-up of static electricity on the sheet.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-04-21 1989-10-21 1990-04-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-04-21 1993-10-21 1994-04-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-04-21 1997-10-21 1998-04-22 $7700.00 Window Closed / Lapsed

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