US PATENT SUBCLASS 528 / 400
.~.~ With alcohol or alcoholate reactant

Current as of: June, 1999
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528 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {23}
398  DF  .~ FROM PHOSPHORUS-CONTAINING REACTANT {2}
400.~.~ With alcohol or alcoholate reactant

DEFINITION

Classification: 528/400

(under subclass 398) Subject matter wherein a phosphorus-containing material is reacted with an alcohol or alcoholate.

SEE OR SEARCH CLASS

520, Synthetic Resins or Natural Rubbers, see the Glossary for a definition of the term "alcohol".