US PATENT SUBCLASS 205 / 368
.~.~.~ Rare earth metal (At. No. 21, 39 or 57-71)

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

334  DF  ELECTROLYTIC SYNTHESIS (PROCESS, COMPOSITION, AND METHOD OF PREPARING COMPOSITION) {21}
354  DF  .~ Utilizing fused bath {6}
367  DF  .~.~ Single metal produced {8}
368.~.~.~ Rare earth metal (At. No. 21, 39 or 57-71)

DEFINITION

Classification: 205/368

Rare earth metal (At. No. 21, 39, or 57-71):

(under subclass 367) Subject matter wherein the single metal produced is a rare earth metal (i.e., scandium, yittrium, or lanthanides).