Word

EH

Status

Dead

Status Code

900

Status Date

Wednesday, November 4, 1992

Serial Number

72322572

Registration Number

0914976

Registration Date

Tuesday, June 15, 1971

Mark Type

3000

Filing Date

Monday, March 24, 1969

Trademark Owner History

E-H RESEARCH LABORATORIES, INC.

Classifications

21 TAP-OFFS; ATTENUATORS; D.C. RESTORERS; AND MICROWAVE AMPLIFIERS

26 ELECTRONIC MEASURING (OR TESTING) DEVICES-NAMELY, PULSE GENERATORS, MARKER GENERATORS, TUNNEL DIODE PULSERS, RISE-TIME STANDARDS, PULSE TRANSFORMERS, RISE-TIME INTEGRATORS, SINGLE PULSE TRIGGERS, WORD GENERATORS, CURRENT SOURCES, TIMING UNITS; PULSE DRIVERS; MEMORY TEST SYSTEMS COMPRISING WORD GENERATORS, TIMING UNITS, PULSE DRIVERS, CURRENT SOURCES; VOLTMETERS, POWER SUPPLIES AND DISCRIMINATORS AND USED IN VARIOUS COMBINATIONS FOR TESTING PURPOSES; SWITCHING TIME TEST SYSTEMS FOR AUTOMATIC TESTING OF TRANSISTOR DIODES; DELAY LINES; SEMICONDUCTOR AND DYNAMIC TEST SYSTEMS FOR TESTING INTEGRATED CIRCUITS (BIPOLAR MOS, LST) TRANSISTOR DIODES AND OTHER PULSE AND LOGIC ELEMENTS-NAMELY, TIMING UNITS, PULSE DRIVERS CONTROL UNITS, AND RACK ASSEMBLY; STROBING VOLTMENTERS; ANALOG TO DIGITAL RECORDS-GENERATORS; DIGITAL/ANALOG CONVERTERS; AND MICROWAVE SWEPT OSCILLATORS AND TRANSISTOR MOUNTS FOR MEASUREMENT OF TRANSISTOR SWITCHING TIMES

Trademark Events

Nov 4, 1992

Expired Sec. 9

Jul 5, 1977

Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.