US PATENT SUBCLASS 205 / 677
.~.~.~.~ With one or more phosphoric acids

Current as of: June, 1999
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205 /   HD   ELECTROLYSIS: PROCESSES, COMPOSITIONS USED THEREIN, AND METHODS OF PREPARING THE COMPOSITIONS

640  DF  ELECTROLYTIC EROSION OF A WORKPIECE FOR SHAPE OR SURFACE CHANGE (E.G., ETCHING, POLISHING, ETC.) (PROCESS AND ELECTROLYTE COMPOSITION) {19}
674  DF  .~ Electrolyte composition or defined electrolyte {6}
675  DF  .~.~ Less than 50 weight percent water {3}
676  DF  .~.~.~ More than 20 weight percent organic material {2}
677.~.~.~.~ With one or more phosphoric acids

DEFINITION

Classification: 205/677

With one or more phosphoric acids:

(under subclass 676) Subject matter in which the electrolyte also contains one or more phosphoric acids (e.g., orthophosphoric acid, metaphosphoric acid, polyphosphoric acid, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

680, for an electrolyte containing more than 20 percent by weight of one or more phosphoric acids but less than or equal to 20 percent by weight organic material.

682, for an aqueous-base electrolyte containing phosphorus.