US PATENT SUBCLASS 426 / 540
.~ Specific dye or pigment per se or compositions containing same

Current as of: June, 1999
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426 /   HD   FOOD OR EDIBLE MATERIAL: PROCESSES, COMPOSITIONS, AND PRODUCTS

531  DF  PRODUCTS PER SE, OR PROCESSES OF PREPARING OR TREATING COMPOSITIONS INVOLVING CHEMICAL REACTION BY ADDITION, COMBINING DIVERSE FOOD MATERIAL, OR PERMANENT ADDITIVE {29}
540.~ Specific dye or pigment per se or compositions containing same

DEFINITION

Classification: 426/540

(under subclass 531) Products involving a food composition or additive therefor containing a named dye or pigment.

(1) Note. A food composition containing two or more additives which will react or later react with each other to form a dye or pigment is proper in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

250, for process of dyeing or pigmenting food material.

652, for additives for meat products which react with meat pigments to give desired colored results.