US PATENT SUBCLASS 424 / 686
.~.~ Carbonate or bicarbonate

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

600  DF  INORGANIC ACTIVE INGREDIENT CONTAINING {20}
682  DF  .~ Aluminum, calcium or magnesium element, or compound containing {7}
686.~.~ Carbonate or bicarbonate {1}
687  DF  .~.~.~> Calcium carbonate

DEFINITION

Classification: 424/686

Carbonate or bicarbonate:

(under subclass 682) Compositions containing a compound wherein aluminum, calcium or magnesium is chemically combined with a carbonate (C03=) or bicarbonate (HC03) radical.

(1) Note. Compositions containing a carbonate or bicarbonate compound in combination with a dry acid which will react in the presence of H2O to form as gas in subclass 44.

(2) Note. Synonyms/Examples: Dolomite.