US PATENT SUBCLASS 502 / 511
.~.~ Two or more nitrogen atoms bonded to different carbon atoms

Current as of: June, 1999
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502 /   HD   CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS OF MAKING

506  DF  METHOD OF MAKING INORGANIC COMPOSITION UTILIZING ORGANIC COMPOUND (EXCEPT FORMIC, ACETIC, OR OXALIC ACID OR SALT THEREOF) {5}
509  DF  .~ Nitrogen containing organic compound {2}
511.~.~ Two or more nitrogen atoms bonded to different carbon atoms

DEFINITION

Classification: 502/511

Two or more nitrogen atoms bonded to different carbon atoms:

(under subclass 509) Collections of art in which a second nitrogen atom is bonded to a different carbon atom than that to which the first nitrogen is bonded.