US PATENT SUBCLASS 424 / 123
.~ Processes of making, purifying or recovering (nonfermentation)

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

115  DF  FERMENTATE OF UNKNOWN CHEMICAL STRUCTURE {2}
123.~ Processes of making, purifying or recovering (nonfermentation) {1}
124  DF  .~.~> Ion exchange or chromatography

DEFINITION

Classification: 424/123

(under subclass 115) Processes which are directed to the nonfermentative preparation, purification or recovery of a fermentate containing composition or a fermentate compound of unknown chemical structure, not more specifically provided for elsewhere.

SEE OR SEARCH CLASS

260, Chemistry of Carbon Compounds, appropriate subclass for a nonfermentative process of preparing or treating an antibiotic compound of known chemical structure.

435, Chemistry: Molecular Biology and Microbiology, appropriate subclasses for a fermentative process of preparing or treating an antibiotic product.