US PATENT SUBCLASS 521 / 117
.~.~.~ Ingredient contains a -C-XH group wherein X is a chalcogen atom and the carbon atom is not double-bonded to a chalcogen atom, phenol, etc.

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}
117.~.~.~ Ingredient contains a -C-XH group wherein X is a chalcogen atom and the carbon atom is not double-bonded to a chalcogen atom, phenol, etc. {1}
118  DF  .~.~.~.~> -C-XH ingredient contains a nitrogen atom

DEFINITION

Classification: 521/117

Ingredient contains a -C-XH group wherein X is a chalcogen atom and the carbon atom is not double bonded to a chalcogen atom, phenol, etc.:

(under subclass 99) Subject matter wherein the stated ingredient contains a C-XH group, wherein X is a chalcogen atom, and wherein the carbon atom bonded to the chalcogen atom of the XH group is not double bonded to an additional chalcogen atom.