US PATENT SUBCLASS 424 / 561
.~.~ Germ cell (e.g., ovum, spermatozoa, 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}
558  DF  .~ Urogenital system (e.g., kidney, etc.) {2}
561.~.~ Germ cell (e.g., ovum, spermatozoa, etc.)

DEFINITION

Classification: 424/561

Germ cells (e.g., ovum, spermatozoa, etc.):

(under subclass 558) Subject matter in which the material is or is derived from germ cells which are sexual reproductive cells.

SEE OR SEARCH THIS CLASS, SUBCLASS:

581, for extracts or isolates of eggs with shells.

SEE OR SEARCH CLASS

62, Refrigeration,

62+, for methods of freezing ovum or spermatozoa.

128, Surgery, appropriate subclasses for methods of artificial insemination.

435, Chemistry: Molecular Biology and Microbiology, 2, for frozen ovum or spermatozoa.