US PATENT SUBCLASS 502 / 218
.~.~.~ And Group I metal containing (i.e., alkali, Ag, Au or Cu)

Current as of: June, 1999
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502 /   HD   CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS OF MAKING

100  DF  CATALYST OR PRECURSOR THEREFOR {12}
216  DF  .~ Sulfur or compound containing same {3}
217  DF  .~.~ Sulfate {1}
218.~.~.~ And Group I metal containing (i.e., alkali, Ag, Au or Cu)

DEFINITION

Classification: 502/218

And Group I metal containing (i.e., alkali, Ag, Au or Cu):

(under subclass 217) Composition including a alkali metal, copper, gold or silver, free or chemically combined.