US PATENT SUBCLASS 552 / 524
.~.~.~ The sulfur is bonded directly at the 1- or 3-position

Current as of: June, 1999
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552 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, subclass 1) {11}
502  DF  .~ Cyclopentanohydrophenanthrene ring system containing {21}
523  DF  .~.~ Sulfur bonded directly to the cyclopentanohydrophenanthrene ring system {2}
524.~.~.~ The sulfur is bonded directly at the 1- or 3-position

DEFINITION

Classification: 552/524

(under subclass 523) Compounds wherein the sulfur is bonded directly at the 1- or 3-position of the cyclopentanohydrophenanthrene ring system.

(1) Note. An example of a compound provided for herein is: [figure]