US PATENT SUBCLASS 521 / 162
.~.~.~ N=C=X reactant contains atoms other than carbon and hydrogen and other than nitrogen and chalcogen as part of the N=C=X group

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
155  DF  .~.~ Cellular product derived from a -N=C=X containing reactant wherein X is a chalcogen atom {10}
162.~.~.~ N=C=X reactant contains atoms other than carbon and hydrogen and other than nitrogen and chalcogen as part of the N=C=X group

DEFINITION

Classification: 521/162

N=C=X reactant contains atoms other than carbon and hydrogen and other than nitrogen and chalcogen as part of the N=C=X group:

(under subclass 155) Subject matter wherein the -N=C=X reactant contains atoms other than carbon and hydrogen and atoms other than nitrogen or chalcogen as part of the -N=C=X moiety.

(1) Note. This subclass provides for-N=C=X reactants containing atoms other than C, H, N, or chalcogen, and for -N=C=X compounds wherein nitrogen or chalcogen are present but are not part of the -N=C=X moiety.