US PATENT SUBCLASS 424 / 581
.~ Egg enclosed in shell or a part thereof (e.g., eggshell, egg yolk, etc.)

Current as of: June, 1999
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424 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

520  DF  EXTRACT, BODY FLUID, OR CELLULAR MATERIAL OF UNDETERMINED CONSTITUTION DERIVED FROM ANIMAL IS ACTIVE INGREDIENT {21}
581.~ Egg enclosed in shell or a part thereof (e.g., eggshell, egg yolk, etc.)

DEFINITION

Classification: 424/581

Egg enclosed in shell or a part thereof (e.g., eggshell, egg yolk, etc.):

(under subclass 520) Subject matter in which the material is or is derived from an egg or part thereof; e.g., eggshell, egg yolk, etc., which is of the type which has a shell.

(1) Note. Included in this subclass are bird eggs.

SEE OR SEARCH THIS CLASS, SUBCLASS:

561, for isolates prepared from human or animal ova.