US PATENT SUBCLASS 556 / 67
.~.~.~.~.~ Sulfur double bonded directly to chalcogen (e.g., neoarsphenamines, etc.)

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {3}
1  DF  .~ HEAVY METAL CONTAINING (e.g., Ga, In or T1, etc.) {19}
64  DF  .~.~ Arsenic, antimony, or bismuth containing (As, Sb, or Bi) {5}
65  DF  .~.~.~ Arsenic double bonded directly to arsenic (e.g., arsenobenzenes, etc.) {1}
66  DF  .~.~.~.~ Containing two benzene rings each having nitrogen, chalcogen and one of the arsenics bonded directly thereto (e.g., arsphenamines, etc.) {1}
67.~.~.~.~.~ Sulfur double bonded directly to chalcogen (e.g., neoarsphenamines, etc.)

DEFINITION

Classification: 556/67

(under subclass 66) Compounds which contain sulfur double

bonded directly to chalcogen.

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