US PATENT SUBCLASS 556 / 109
.~.~.~.~ Plural chalcogens and plural nitro groups bonded directly to the same benzene ring (e.g., lead styphnates, lead salts of di-nitroresorcinol, 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}
108  DF  .~.~.~ Carbocyclic ring and the metal are bonded directly to the same chalcogen (e.g., stannous catecholates, etc.) {1}
109.~.~.~.~ Plural chalcogens and plural nitro groups bonded directly to the same benzene ring (e.g., lead styphnates, lead salts of di-nitroresorcinol, etc.)

DEFINITION

Classification: 556/109

(under subclass 108) Compounds wherein at least two chalcogens and at least two nitro groups are bonded directly to the same benzene ring.

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