US PATENT SUBCLASS 556 / 68
.~.~.~ Tricyclo ring system having a six-membered ring, which includes heavy metal and nitrogen or chalcogen, as one of the cyclos (e.g., phenoxarsines, phenarsazines, 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}
68.~.~.~ Tricyclo ring system having a six-membered ring, which includes heavy metal and nitrogen or chalcogen, as one of the cyclos (e.g., phenoxarsines, phenarsazines, etc.)

DEFINITION

Classification: 556/68

(under subclass 64) Compounds which contain a tricyclo ring system having a six-membered ring, which includes the heavy metal and nitrogen or chalcogen (i.e., oxygen, sulfur, selenium or tellurium), as one of the cyclos.

(1) Note. Examples of compounds provided for herein are: [figure] [figure]