US PATENT SUBCLASS 987 / 125
.~.~.~ Compound contains a nitrogen or halogen atom or contains a chalcogen atom other than bonded to the P atom (9/53A1; 9/53A2)

Current as of: June, 1999
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987 /   HD   ORGANIC COMPOUNDS CONTAINING A Bi, Sb, As, OR P ATOM OR CONTAINING A METAL ATOM OF THE 6TH TO 8TH GROUP OF THE PERIODIC SYSTEM

30  DF  PHOSPHORUS COMPOUNDS (9/02; 9/06) {15}
116  DF  .~ Contains at least one (C)-P bond (9/28) {19}
121  DF  .~.~ Pentavalent P compound having the structure (C)-P(=X)(C or H)(C or H) where X is chalcogen (9/53) {4}
125.~.~.~ Compound contains a nitrogen or halogen atom or contains a chalcogen atom other than bonded to the P atom (9/53A1; 9/53A2)

DEFINITION

Classification: 987/125

Compound contains a nitrogen or halogen atom or contains a chalcogen atom other than bonded to the P atom (9/53A1; 9/53A2):

(under subclass 121) Subject matter wherein the P compound contains at least one nitrogen atom, or at least one halogen atom, or at least one chalcogen atom which is other than the chalcogen atom bonded to the P atom.