US PATENT SUBCLASS 423 / 382
.~.~.~.~ Utilizing carbon reactant from specified source

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  DF  .~.~ Ternary compound {4}
380  DF  .~.~.~ Utilizing free nitrogen as reactant {2}
382.~.~.~.~ Utilizing carbon reactant from specified source

DEFINITION

Classification: 423/382

(under subclass 380) Processes which also include the use of carbon in a reaction and which is further disclosed as originationg from a particular source, e.g., charcoal, a carbide, oil, etc.

(1) Note. Where the reactant is described merely as "carbon" or "carbonaceous", this is not sufficient for classification herein.