US PATENT SUBCLASS 556 / 120
.~.~.~.~ Containing -C(=X)-, wherein X is chalcogen (e.g., zinc formaldehyde sulphoxylates, 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}
118  DF  .~.~ Zinc, cadmium, or mercury containing (Zn, Cd, or Hg) {3}
119  DF  .~.~.~ Sulfur double bonded directly to chalcogen {1}
120.~.~.~.~ Containing -C(=X)-, wherein X is chalcogen (e.g., zinc formaldehyde sulphoxylates, etc.)

DEFINITION

Classification: 556/120

(under subclass 119) Compounds which contain a -C(=X)X- group, wherein X is chalcogen.

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