US PATENT SUBCLASS 516 / 203
.~ The agent contains organic compound containing nitrogen, except if present soley as NH4+

Current as of: June, 1999
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516 /   HD   COLLOID SYSTEMS AND WETTING AGENTS; SUBCOMBINATIONS THEREOF; PROCESSES OF

198  DF  COMPOSITIONS CONTAINING A WETTING AGENT; PROCESSES OF WETTING; PROCESSES OF PREPARING THE COMPOSITIONS (E.G., SPREADING, PENETRATING, LEVELING) {4}
203.~ The agent contains organic compound containing nitrogen, except if present soley as NH4+

DEFINITION

Classification: 516/203

The agent contains organic compound containing nitrogen, except if present solely as NH 4+:

(under subclass 198) Subject matter in which the wetting agent* contains an organic* compound containing nitrogen, except for when the nitrogen is present solely as the cationic ammonium group, NH 4+.

(1) Note. Materials* used as agents* which are impurely or crudely derived from plant or animal sources, are assumed to contain nitrogen-containing organic* compounds (i.e., the DNA and proteins), unless clearly separated out, such as cellulose, carbohydrate fractions, etc.