US PATENT SUBCLASS 423 / 371
.~.~ Ternary compound

Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

351  DF  NITROGEN OR COMPOUND THEREOF (EXCEPT AMMONIUM SALT OF NON-NITROGEN ACID) {5}
364  DF  .~ Carbon containing {7}
371.~.~ Ternary compound {4}
372  DF  .~.~.~> Hydrogen cyanide {4}
378  DF  .~.~.~> Using cyanamide as reactant
379  DF  .~.~.~> Utilizing hydrogen cyanide as reactant
380  DF  .~.~.~> Utilizing free nitrogen as reactant {2}

DEFINITION

Classification: 423/371

(under subclass 364) Products or processes in which the product consists of only one element in addition to the carbon and nitrogen.

(1) Note. The ammonium (NH4+!) radical is considered to be a single element, see (1) Note to

the class definition.