USPTO serial 71488234
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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 | APPARATUS FOR CONTROLLING OR MODIFYING ELECTRICAL CURRENTS-NAMELY, ALTERNATING CURRENT RECTIFYING SYSTEMS, ELECTRIC CURRENT AMPLIFIERS, AUTOMATIC SELF-REGULATING BATTERY CHARGERS, CHOKES, ELECTRIC RESISTANCE WELDERS, ((GENERATORS OF HIGH FREQUENCY INDUCTION HEATING CURRENT, TRANSFORMERS, VIBRATORY FEEDER CONTROLLERS, AND)) VOLTAGE REGULATORS | EXPIRED | — |
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 |
|---|---|---|---|
| Dec 12, 1986 | EXRG | EXPIRED SEC. 9 | — |