US PATENT SUBCLASS 564 / 42
.~.~.~.~ The sulfur is part of a monocyclic benzene ring containing substituent

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1  DF  .~ AMINO NITROGEN CONTAINING (E.G., UREA, SULFONAMIDES, NITROSAMINES, OXYAMINES, ETC., AND SALTS THEREOF) {37}
32  DF  .~.~ Ureas (i.e., HNH-CO-HNH, wherein substitution may be made for hydrogen only) {9}
39  DF  .~.~.~ Sulfur attached directly to urea nitrogen by nonionic bonding {2}
42.~.~.~.~ The sulfur is part of a monocyclic benzene ring containing substituent {1}
43  DF  .~.~.~.~.~> Alicyclic ring bonded directly to urea nitrogen

DEFINITION

Classification: 564/42

(under subclass 39) Compounds wherein the sulfur is part of a substituent which is monocyclic and aromatic.

(1) Note. This subclass contains, for example: [figure] [figure]