US PATENT SUBCLASS 252 / 187.1
.~ Free halogen or oxy-halogen acid type

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

186.1  DF  OXIDATIVE BLEACHANT, OXIDANT CONTAINING, OR GENERATIVE {9}
187.1.~ Free halogen or oxy-halogen acid type {6}
187.2  DF  .~.~> Oxidant contains halogen other than chlorine
187.21  DF  .~.~> Chlorine dioxide or monoxide {1}
187.23  DF  .~.~> Chlorite {1}
187.31  DF  .~.~> Chlorate or perchlorate
187.32  DF  .~.~> Hypochlorous acid
187.33  DF  .~.~> Oxidant contains N-Cl bond {1}

DEFINITION

Classification: 252/187.1

Free halogen or oxy-halogen acid type:

(under subclass 186.1) Composition which contains an oxy-halogen acid compound, an anhydride thereof, free halogen, or a compound which yields such a halogen body when treated with water, basic material, nonhologen acid, or heat, e.g., a bleaching composition comprised of perchloric acid and polyvinylpyrrolidone, etc.