US PATENT SUBCLASS 327 / 267
.~.~.~.~ Electron tube

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

Internet Version by PATENTEC © 1999      Terms of Use


327 /   HD   MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS

100  DF  SIGNAL CONVERTING, SHAPING, OR GENERATING {29}
261  DF  .~ Having specific delay in producing output waveform {7}
263  DF  .~.~ Delay interval set by rising or falling edge {2}
264  DF  .~.~.~ Having specific active circuit element or structure (e.g., FET, complementary transistors, etc.) {3}
267.~.~.~.~ Electron tube

DEFINITION

Classification: 327/267

Electron tube:

(under subclass 264) Subject matter including a gas filled or partially or fully evacuated (vacuum) device which regulates current flow between spaced electrodes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

275, for circuits using an electron tube within an active circuit element or structure having multiple outputs with a plurality of delay intervals.

282, for time interval control using an electron tube within an active circuit element or structure having a single output with variable or selectable delay.

289, for circuits using an electron tube in a specific active circuit element or structure providing output waveform production delay.