US PATENT SUBCLASS 527 / 403
.~.~ With phenolic reactant

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {6}
400  DF  .~ FROM LIGNIN, TANNIN, OR DERIVATIVE REACTANT {2}
403.~.~ With phenolic reactant

DEFINITION

Classification: 527/403

With phenolic reactant:

(under subclass 400) Subject matter wherein a phenolic reactant is present in addition to lignin, tannin, or derivative.

SEE OR SEARCH CLASS

520, Synthetic Resins or Natural Rubbers, Glossary, for a definition of "phenolic reactant".