US PATENT SUBCLASS 502 / 80
.~ Clay

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

60  DF  ZEOLITE OR CLAY, INCLUDING GALLIUM ANALOGS {13}
80.~ Clay {2}
81  DF  .~.~> Acid treating {2}
84  DF  .~.~> And metal, metal oxide, or metal hydroxide

DEFINITION

Classification: 502/80

Clay:

(under subclass 60) Composition containing the earthy hydrous aluminum silicate as set out in the Glossary term "clay".

SEE OR SEARCH CLASS

119, Animal Husbandry, particularly

173, for material used for absorbing moisture from an animal waste product, i.e., excrement or urine, and having a clay component.