US PATENT SUBCLASS 423 / 28
.~.~.~ Specified particle size

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

1  DF  TREATING MIXTURE TO OBTAIN METAL CONTAINING COMPOUND {15}
23  DF  .~ Group IB metal (Cu, Ag, or Au) {10}
27  DF  .~.~ Leaching, washing, or dissolving {6}
28.~.~.~ Specified particle size

DEFINITION

Classification: 423/28

(under subclass 27) Processes which specify a particular particle size or range for the starting mixture, the intermediate or the final product.