US PATENT SUBCLASS 423 / 617
.~.~ Group VA metal or arsenic (Sb, Bi, or As)

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

579  DF  OXYGEN OR COMPOUND THEREOF {4}
592  DF  .~ Metal containing {12}
617.~.~ Group VA metal or arsenic (Sb, Bi, or As)

DEFINITION

Classification: 423/617

(under subclass 592) Products or processes wherein the metal is antimony, bismuth or arsenic (Group V A).

(1) Note. Arsenic is defined as a metal for the purpose of this class.