US PATENT SUBCLASS 562 / 823
.~.~.~ Phosphorus, -C(=X)-, wherein X is chalcogen, additional chalcogen attached directly to the nitrogen by nonionic bonding

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {41}
821  DF  .~ Sulfur halides (i.e., compounds having halogen attached directly to sulfur by nonionic bonding) {5}
822  DF  .~.~ Nitrogen bonded directly to the sulfur {1}
823.~.~.~ Phosphorus, -C(=X)-, wherein X is chalcogen, additional chalcogen attached directly to the nitrogen by nonionic bonding

DEFINITION

Classification: 562/823

(under subclass 822) Compounds in which phosphorus, a -C(=X)- group, wherein X is chalcogen (i.e., oxygen, sulfur, selenium or tellurium) or an additional chalcogen is attached directly to the nitrogen by nonionic bonding.

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