US PATENT SUBCLASS 558 / 386
.~.~.~ Chalcogen, nitrogen, or halogen bonded directly to the phosphorus by nonionic bonding

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {21}
303  DF  .~ Nitriles (i.e., compounds having cyano bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon) {21}
385  DF  .~.~ Phosphorus attached indirectly to the cyano group by nonionic bonding {1}
386.~.~.~ Chalcogen, nitrogen, or halogen bonded directly to the phosphorus by nonionic bonding

DEFINITION

Classification: 558/386

(under subclass 385) Compounds wherein the phosphorus is attached directly to nitrogen, halogen, or chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) by nonionic bonding.

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