US PATENT SUBCLASS 514 / 770
.~ Siliceous or calcareous material (e.g., clay, earth, etc.)

Current as of: June, 1999
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514 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

769  DF  DESIGNATED INORGANIC NONACTIVE INGREDIENT OR ELEMENTAL MATERIAL OTHER THAN WATER {2}
770.~ Siliceous or calcareous material (e.g., clay, earth, etc.)

DEFINITION

Classification: 514/770

Siliceous or calcareous material (e.g., cloy, earth, etc.):

(under subclass 769) Subject matter wherein the nonbioactive inorganic compound contains silicon or calcium, e.g., clays, etc.