US PATENT SUBCLASS 252 / 400.62
.~.~.~ Alkali metal or NH4+ containing

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

380  DF  PRESERVATIVE AGENTS {3}
397  DF  .~ Anti-oxidants or chemical change inhibitants {2}
399  DF  .~.~ Organic compound containing {8}
400.62.~.~.~ Alkali metal or NH4+ containing

DEFINITION

Classification: 252/400.62

Alkali metal or NH(4)+ containing:

(under subclass 400.1) Compositions which include a compound containing an atom of an alkali metal (i.e., lithium, sodium, potassium, rubidium, cesium or francium or NH(4[end subscrpt])+).