US PATENT SUBCLASS 423 / 597
.~.~.~.~.~ Dichromate


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

579  DF  OXYGEN OR COMPOUND THEREOF {4}
592  DF  .~ Metal containing {12}
593  DF  .~.~ Plural metals or metal and ammonium {6}
595  DF  .~.~.~ Chromium (e.g., chromate, etc.) {1}
596  DF  .~.~.~.~ And alkali metal, alkaline earth metal, or ammonium containing {1}
597.~.~.~.~.~ Dichromate


DEFINITION

Classification: 423/597

(under subclass 596) Products or processes wherein the compound is in the form of a dichromate (Cr2[end subscrpt]O72-).