US PATENT SUBCLASS 424 / 582
.~ Embryonic structure (e.g., embryo or fetus, 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}
582.~ Embryonic structure (e.g., embryo or fetus, etc.) {1}
583  DF  .~.~> Placenta or umbilical cord

DEFINITION

Classification: 424/582

Embryonic structure (e.g., embryo or fetus, etc.):

(under subclass 520) Subject matter in which the material is or is derived from an embryonic structure, embryo, or fetus, etc.

(1) Note. Included in this subclass are amniotic sac, corpus luteum, and whole embryo or fetus.