US PATENT SUBCLASS 521 / 115
.~.~.~.~ -C-X-C- compound contains a nitrogen atom


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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {3}
50  DF  .~ CELLULAR PRODUCTS OR PROCESSES OF PREPARING A CELLULAR PRODUCT, E.G., FOAMS, PORES, CHANNELS, ETC. {27}
99  DF  .~.~ Cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water {18}
114  DF  .~.~.~ Ingredient contains a -C-X-C- group wherein X is a chalcogen atom and none of the C atoms bonded to the chalcogen are double-bonded to an additional chalcogen atom {2}
115.~.~.~.~ -C-X-C- compound contains a nitrogen atom


DEFINITION

Classification: 521/115

-C-X-C- compound contains a nitrogen atom:

(under subclass 114) Subject matter wherein the -C-X-C ingredient contains a nitrogen atom.