US PATENT SUBCLASS 423 / 490
.~.~ Alkali or alkaline earth metal containing

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

462  DF  HALOGEN OR COMPOUND THEREOF {10}
489  DF  .~ Binary fluorine containing compound {1}
490.~.~ Alkali or alkaline earth metal containing

DEFINITION

Classification: 423/490

(under subclass 489) Products and processes in which the other element of the binary compound is lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, strontium or barium.

SEE OR SEARCH THIS CLASS, SUBCLASS:

185, for treating a mixture to obtain an alkali metal and fluorine containing compound by forming an insoluble substance in a liquid.