US PATENT SUBCLASS 428 / 473
.~ Of animal membrane or skin


Current as of: June, 1999
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428 /   HD   STOCK MATERIAL OR MISCELLANEOUS ARTICLES

411.1  DF  COMPOSITE (NONSTRUCTURAL LAMINATE) {25}
473.~ Of animal membrane or skin


DEFINITION

Classification: 428/473

(under subclass 411.1) Product in which one layer comprises at least an integral portion of a layer of animal origin which existed in the layer or film form; see (2) Note below.

(1) Note. Patents claiming a laminate including glue* or gelatin* in a film form are not included in this subclass because neither exists in the animal as a layer or foil. A patent claiming a glue* or gelatin* laminate would be placed in subclasses 474.4+.

(2) Note. Animal skin in which the fur remains intact is considered pile or nap type and patents to a laminate including such skin will be placed in subclasses 85+.

SEE OR SEARCH THIS CLASS, SUBCLASS:

85+, for a fur laminate and see (2) Note above.

151, for a web or sheet made to simulate leather grain surface.

474+, for a laminate including a film manufactured from animal protein*; and see (1) Note above.

540, for a single layer of animal skin (e.g., leather, etc.) which is impregnated or saturated with an extraneous material.

904, for a cross-reference collection of artificial leather products.

SEE OR SEARCH CLASS

76, Metal Tools and Implements, Making,

81+, for leather laminates in the form of a strop.

359, Optics: Systems (Including Communication) and Elements,

885+, for an optical filter system comprising more than plural layers defined merely by the composition of the layers.