US PATENT SUBCLASS 252 / 404
.~.~.~ Phenol or quinone radical 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}
404.~.~.~ Phenol or quinone radical containing

DEFINITION

Classification: 252/404

(under subclass 399) Compositions which contain organic compounds which contain a phenol or quinone radical (oxygen bonded directly to carbon of a benzene or naphthalene nucleus or other aromatic nucleus).