US PATENT SUBCLASS 423 / 619
.~.~.~ Lead

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}
618  DF  .~.~ Group IVA metal (Ge, Sn, or Pb) {1}
619.~.~.~ Lead {1}
620  DF  .~.~.~.~> Utilizing metallic lead as reactant {1}

DEFINITION

Classification: 423/619

(under subclass 618) Products or processes wherein the metal is lead.

SEE OR SEARCH THIS CLASS, SUBCLASS:

97, for processes of treating mixtures to recover lead wherein the lead is recovered as lead oxide, by volatization.

SEE OR SEARCH CLASS

429, Chemistry: Electrical Current Producing Apparatus, Product, and Process,

225+, for lead electrodes for batteries.