US PATENT SUBCLASS 423 / 532
.~.~ Sulfur trioxide


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

511  DF  SULFUR OR COMPOUND THEREOF {4}
512.1  DF  .~ Oxygen containing {11}
532.~.~ Sulfur trioxide {1}
533  DF  .~.~.~> Utilizing catalyst in reaction {4}


DEFINITION

Classification: 423/532

(under subclass 512.1) Products or processes wherein the compound is sulfur trioxide (SO3).