US PATENT SUBCLASS 987 / 208
.~.~ Containg the structure P-(X-carbocyclic ring) (9/204; 9/205)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
207  DF  .~ Trivalent P containing the structure P-(X-C) wherein a S, Se, or Te atom is directly bonded to the P atom and wherein X is chalcogen (X may qualify as the required S, Se, or Te atom) (9/201; 9/201A1; 9/202; 9/203) {1}
208.~.~ Containg the structure P-(X-carbocyclic ring) (9/204; 9/205)

DEFINITION

Classification: 987/208

Containing the structure P-(X-carbocyclic ring) (9/204; 9/205):

(under subclass 207) Subject matter wherein the C atom which is bonded directly to the oxygen, sulfur, selenium, or tellurium atom is either a ring atom of a carbocyclic ring or is indirectly bonded to a ring atom of a carbocyclic group and wherein the bonding is not through the oxygen, sulfur, selenium, or tellurium atom.