US PATENT SUBCLASS 556 / 83
.~.~.~ Plural heavy metals bonded directly to the same chalcogen (e.g., two germaniums bonded directly to the same oxygen, 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}
81  DF  .~.~ Germanium, tin, or lead containing (Ge, Sn, or Pb) {6}
83.~.~.~ Plural heavy metals bonded directly to the same chalcogen (e.g., two germaniums bonded directly to the same oxygen, etc.) {1}
84  DF  .~.~.~.~> Exactly three carbons bonded directly to each of the metals (e.g., bis tributyl tin oxides, etc.)

DEFINITION

Classification: 556/83

(under subclass 81) Compounds wherein at least two heavy metals are bonded directly to the same chalcogen (i.e., oxygen, sulfur, selenium or tellurium).

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