USPTO serial 71536457
Reviewed by CopyMark Law Group
This page summarizes the public USPTO record for this serial number, including owners, goods and services, and prosecution history.
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| Class | Description | Status | First use |
|---|---|---|---|
| 021 | FIXED AND VARIABLE TRANSFORMERS-NAMELY, MINIATURE TRANSFORMERS; REACTORS-NAMELY, AUDIO AND POWER REACTORS FOR RADIO; POWER PACKS OF THE DRY METALLIC VACUUM OR GASEOUS TUBE TYPE; [ TRANSMITTERS-NAMELY, RADIO FREQUENCY LOW POWER TRANSMITTERS FOR AMATEUR AND INDUSTRIAL USES; AMPLIFIERS, AMPLIFIER KITS; ] VOLTAGE ADJUSTING AND REGULATING EQUIPMENT-NAMELY, MANUALLY OPERATED AUTO TRANSFORMERS AND VOLTAGE ADJUSTERS AND ELECTRONIC CONTROL EQUIPMENT-NAMELY, AUTO TRANSFORMERS FOR USE WITH MANUALLY OPERATED SWITCHES FOR ADJUSTMENT OF AMPERAGE COUPLED WITH VOLTAGE REGULATORS AND INDICATORS | EXPIRED | Sep 14, 1930 |
CopyMark links this record to cited §2(d) serials, the owner's other marks, Nice classes, similar mark names, and recently changed USPTO applications.
| Date | Code | Event | What it means |
|---|---|---|---|
| Nov 3, 1992 | EXRG | EXPIRED SEC. 9 | — |
| May 17, 1969 | REN1 | REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS) | — |