US PATENT SUBCLASS 435 / 391
.~.~ Culture medium contains an animal extract

Current as of: June, 1999
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435 /   HD   CHEMISTRY: MOLECULAR BIOLOGY AND MICROBIOLOGY

325  DF  ANIMAL CELL, PER SE (E.G., CELL LINES, ETC.); COMPOSITION THEREOF; PROCESS OF PROPAGATING, MAINTAINING OR PRESERVING AN ANIMAL CELL OR COMPOSITION THEREOF; PROCESS OF ISOLATING OR SEPARATING AN ANIMAL CELL OR COMPOSITION THEREOF; PROCESS OF PREPARING A COMPOSITION CONTAINING AN ANIMAL CELL; CULTURE MEDIA THEREFORE {17}
383  DF  .~ Method of culturing cells in suspension {7}
391.~.~ Culture medium contains an animal extract {1}
392  DF  .~.~.~> Serum

DEFINITION

Classification: 435/391

Culture medium contains an animal extract:

(under subclass 4067) Subject matter wherein the medium contains an animal extract.

(1) Note. Animal extracts include compositions derived from whole animals as well as animal cells, tissues and organs. Methods employing highly purified factors; e.g., colony

stimulating factors, are classified in this class, subclasses 385 through 389. Methods employing viable intact cells or intact cellular material; i.e., co-culturing, are classified in this class, subclass 373.