US PATENT SUBCLASS 987 / 185
.~.~.~ Contains the structure "ethylenic group"-P(=X) (C) (X-B) where "--" indicates that a carbon atom of the ethylenic group may or may not be directly bonded to the P atom (9/30A2)

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}
181  DF  .~.~ Pentavalent P having the structure (C)2-P(=X) (X-B) where X is chalcogen and B represents an atom other than C (9/30; 9/30B) {5}
185.~.~.~ Contains the structure "ethylenic group"-P(=X) (C) (X-B) where "--" indicates that a carbon atom of the ethylenic group may or may not be directly bonded to the P atom (9/30A2)

DEFINITION

Classification: 987/185

Contains the structure "ethylenic group" -P(=X)(C)(X-B) where "--" indicates that a carbon atom of the ethylenic group may or may not be directly bonded to the P atom (9/30A2):

(under subclass 181) Subject matter wherein a C atom bonded directly to the P atom is part of an ethylenic group or is bonded directly or indirectly to an ethylenic group and wherein the indirect linkage to the C atom is not through the P atom.

(1) Note. An ethylenic group is defined as a double or triple bond between adjacent acyclic carbon atoms.