US PATENT SUBCLASS 252 / 77
.~.~ Organic compounds of nonmetals other than C, H, and O

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

71  DF  HEAT-EXCHANGE, LOW-FREEZING OR POUR POINT, OR HIGH BOILING COMPOSITIONS {2}
73  DF  .~ Organic components {3}
77.~.~ Organic compounds of nonmetals other than C, H, and O {1}
78.1  DF  .~.~.~> Organic compounds of nonmetals other than C, H, O, and N {2}

DEFINITION

Classification: 252/77

(under subclass 73) Compositions which contain organic compounds which contain nonmetallic elements other than carbon, hydrogen and oxygen.