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Class Information
Number: 442/376
Name: Fabric (woven, knitted, or nonwoven textile or cloth, etc.) > Nonwoven fabric (i.e., nonwoven strand or fiber material) > Including a free metal or alloy constituent
Description: Subject matter having a constituent which is a metal in elemental or alloy form (i.e., in other than the form of a chelate, salt, or compound resulting from the chemical reaction of a metal).

Sub-classes under this class:

Class Number	Class Name	Patents
442/377	Metal or metal-coated strand or fiber material	67
442/380	Particulate free metal or alloy constituent	23
442/378	Preformed metallic film or foil or sheet (film or foil or sheet had structural integrity prior to association with the nonwoven fabric)	161
442/379	Vapor, chemical, or spray deposited metal layer	36

Patents under this class:

1 2

Patent Number	Title Of Patent	Date Issued
4399185	Low pressure-drop catalytic mat and method of preparing the same	Aug. 16, 1983
4391865	Thermal drapery construction	Jul. 5, 1983
4241132	Insulating boards	Dec. 23, 1980
4169911	Porous carbon fiber material with a thin metal film covering each fiber	Oct. 2, 1979
4119748	Steel cord reinforced plastic materials	Oct. 10, 1978
4034136	Flame-retardant resin compositions	Jul. 5, 1977