US PATENT SUBCLASS 423 / 499.1
.~.~ Alkali metal

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

462  DF  HALOGEN OR COMPOUND THEREOF {10}
491  DF  .~ Binary compound containing metal {6}
499.1.~.~ Alkali metal {3}
499.2  DF  .~.~.~> From carbonaceous compound
499.3  DF  .~.~.~> Lithium chloride
499.4  DF  .~.~.~> Sodium chloride {1}

DEFINITION

Classification: 423/499.1

Alkali metal:

(under subclass 491) Products or processes wherein the metal is an alkali metal (i.e., lithium, sodium, potassium, rubidium, or cesium).

SEE OR SEARCH THIS CLASS, SUBCLASS:

197, for treating mixtures to form an alkali metal and halogen containing compound by forming an insoluble substance in a liquid.

490, for a binary compound containing an alkali metal and fluorine.