US PATENT SUBCLASS 252 / 183.16
.~.~ Contains carbonate or bicarbonate

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

183.11  DF  CHEMICALLY INTERACTIVE REACTANTS (VIS-A-VIS) {3}
183.14  DF  .~ Inorganic reactants only {2}
183.16.~.~ Contains carbonate or bicarbonate

DEFINITION

Classification: 252/183.16

Contains carbonate or bicarbonate:

Subject matter under search class 183.14 wherein the composition contains an inorganic carbonate or bicarbonate, e.g., a buffering composition containing a mixture of aluminum hydroxide and ammonium bicarbonate, etc.