US PATENT SUBCLASS 568 / 436
.~.~.~.~.~ Nitrogen containing material utilized

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {4}
300  DF  .~ OXYGEN CONTAINING (E.G., PERCHLORYLBENZENE, ETC.) {11}
420  DF  .~.~ Aldehydes {8}
425  DF  .~.~.~ Benzene ring containing {3}
426  DF  .~.~.~.~ Processes {9}
436.~.~.~.~.~ Nitrogen containing material utilized

DEFINITION

Classification: 568/436

(under subclass 426) Processes wherein the compound is prepared by utilizing a material containing nitrogen in any way, e.g., as reactant, catalyst, solvent, etc.