US PATENT SUBCLASS 252 / 521.6
.~.~ With nonmetal compound containing halogen, nitrogen, phosphorus, or sulfur

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

500  DF  ELECTRICALLY CONDUCTIVE OR EMISSIVE COMPOSITIONS {6}
518.1  DF  .~ Metal compound containing {16}
521.6.~.~ With nonmetal compound containing halogen, nitrogen, phosphorus, or sulfur

DEFINITION

Classification: 252/521.6

With nonmetal compound containing halogen, nitrogen, phosphorus, or sulfur:

(under subclass 518.1) Compositions which have, in addition to the metal compound, a nonmetal compound containing halogen, nitrogen, phosphorus, or sulfur.