Word

GENERAL RADIO CO.

Status

Dead

Status Code

900

Status Date

Tuesday, November 3, 1992

Serial Number

71533497

Registration Number

0525605

Registration Date

Tuesday, May 30, 1950

Mark Type

1000

Filing Date

Thursday, August 21, 1947

Trademark Owner History

GENERAL RADIO COMPANY

Classifications

21 ELERICAL APPARATUS-NAMELY, AUDIO AND RADIO GENERATORS, OSCILLATORS, DETECTOR ASSEMBLIES AND CIRCUITS, RECTIFIERS AND DIRECT AND ALTERNATING-CURRENT AMPLIFIERS; VOLTAGE, CURRENT AND ELECTRONIC POWER-SUPPLY SYSTEMS; VIBRATION PICK-UPS FOR GENERATING VOLTAGES IN RESPONSE TO MECHANICAL VIBRATIONS; AUDIO-FREQUENCY AND RADIO-FREQUENCY TRANSFORMERS; CONNECTORS, INSULATORS, BINDING POSTS, SWITCHES, CONTACTORS, CONTACT MEMBERS, KNOBS, SOCKETS, RHEOSTATS, POTENTIOMETERS FOR USE IN RADIO AND SIMILAR APPARATUS, RESISTORS, ATTENUATORS AND VOLTAGE DIVIDERS; CAPACITORS, INDUCTORS AND CHOKES; ELECTRIC AND ELECTRONIC CONTROL BOXES AND MOTOR-SPEED CONTROL CIRCUITS; RADIO AND OTHER DIALS FOR USE ON ELECTRICAL COMPONENTS AND INSTRUMENTS; ELECTRO-MECHANICAL HUMMER OSCILLATORS; PIEZOELECTRIC CRYSTALS; ELECTRIC FILTERS; ELECTRIC CABLES; CATHODE-RAY TUBES; TRANSMISSION-LINE PHASE, INSERTION AND TERMINAL UNITS; AND TUNED ELECTRIC CIRCUITS FOR SUPPRESSING HARMONICS AND OTHER FREQUENCY COMPONENTS, NOISE AND HUM.

26 STANDARD UNITS OF RESISTANCE, INDUCTANCE AND CAPACITANCE FOR USE IN ELECTRIC MEASURING CIRCUITS; ELECTRICAL BRIDGE CIRCUITS OF THE DECADE, SLIDE-WIRE, DISSIPATION-FACTOR, VACUUM-TUBE-CHARACTERISTIC, CAPACITANCE RESISTANCE AND INDUCTANCE TYPES AND ACCESSORY ELECTRIC CIRCUITS AND COMPONENTS REQUIRED FOR OPERATION WITH THE BRIDGE CIRCUITS; VOLTAGE METERS, OHMMETERS, d'ARSONVILLE METERS, GALVANOMETERS, WAVEMETERS, METERS FOR MEASURING CAPACITY IMPEDANCE, MODULATION, SOUND - LEVEL, NOISE, VIBRATION, DISTORTION, RATE, AUDIBILITY, FREQUENCY AND POWER, AND METERS OF THE HOT-WIRE, HETERODYNE AND OTHER TYPES AND ACCESSORY ELECTRIC CIRCUITS AND COMPONENTS REQUIRED FOR OPERATION WITH THE METERS; ELECTRIC INTERPOLATION APPARATUS; INDUSTRIAL ELECTRONIC STROBOSCOPIC AND OTHER INSTRUMENTS-NAMELY, MOTION-PICTURE RECORDING APPARATUS AND FRAMES, CAMERAS, TRIPODS, INSTRUMENT - CARRYING CASES, LENSES AND ELECTRIC FLASH LAMPS; WAVE-FORM VIBRATION, AND SOUND MEASURING INSTRUMENTS AND ANALYZERS; CALIBRATION, VACUUM-TUBE AND OTHER PRECISION FORKS; VOLTAGE AND CURRENT MULTIPLIERS; SPECIAL MEASURING INSTRUMENTS FOR MAKING MEASUREMENTS AT AUDIO AND RADIO FREQUENCIES; MEASURING NETWORKS; STANDARD-SIGNAL GENERATORS AND OSCILLATORS; OSCILLOSCOPES, GAMMA-RAY AND BETA-RAY COUNTERS; FREQUENCY STANDARDS AND MONITORS; AND RANGE-EXTENSION UNITS.

Trademark Events

Nov 3, 1992

Expired Sec. 9

May 30, 2070

Registered And Renewed (First Renewal - 20 Yrs)