US PATENT SUBCLASS 568 / 58
.~.~.~ Plural rings containing

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


568 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {4}
18  DF  .~ SULFUR CONTAINING {9}
38  DF  .~.~ Thioethers {5}
58.~.~.~ Plural rings containing

DEFINITION

Classification: 568/58

(under subclass 38) Compounds which contain two or more rings.