US PATENT SUBCLASS 423 / 277
.~ Oxygen containing

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

276  DF  BORON OR COMPOUND THEREOF {5}
277.~ Oxygen containing {3}
278  DF  .~.~> Binary compound
279  DF  .~.~> Ternary compound containing metal or ammonium {1}
283  DF  .~.~> Ternary compound containing hydrogen

DEFINITION

Classification: 423/277

(under subclass 276) Products or processes wherein the boron compound includes oxygen.