US PATENT SUBCLASS 505 / 859
.~.~.~.~ Function of AND, OR, NAND, NOR or NOT: (Class 307/462)

Current as of: June, 1999
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505 /   HD   SUPERCONDUCTOR TECHNOLOGY: APPARATUS, MATERIAL, PROCESS

825  DF  APPARATUS, PER SE, DEVICE, PER SE, OR PROCESS OF MAKING OR OPERATING SAME {36}
856  DF  .~ Electrical transmission or interconnection system: (Class 307) {1}
857  DF  .~.~ Nonlinear solid-state device system or circuit: (Class 307/200+) {4}
858  DF  .~.~.~ Digital logic: (Class 307/476) {1}
859.~.~.~.~ Function of AND, OR, NAND, NOR or NOT: (Class 307/462)

DEFINITION

Classification: 505/859

Function of AND, OR, NAND, NOR or NOT: (Class 307/462):

(under subclass 858) Subject matter wherein the digital operations performed are limited to those defined by the Boolean operations of AND, OR, NAND, NOR or NOT.