US PATENT SUBCLASS 528 / 22
.~.~.~.~ Nitrogen-containign silicon compound

Current as of: June, 1999
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528 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {23}
10  DF  .~ FROM SILICON REACTANT HAVING AT LEAST ONE SILICON-TO-HYDROGEN OR -CARBON BOND {12}
12  DF  .~.~ Polymerizing in the pressence of a specified material other than a reactant {6}
21  DF  .~.~.~ Material is a nitrogen-containing compound {1}
22.~.~.~.~ Nitrogen-containign silicon compound

DEFINITION

Classification: 528/22

(under subclass 21) Subject matter wherein silicon and nitrogen are part of the same compound.