USPTO serial 71561770
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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SAN FRANCISCO, CA
| Class | Description | Status | First use |
|---|---|---|---|
| 021 | SOLENOID OR DIAPHRAGM TYPE MAGNETIC GAS VALVES AND MAGNETIC OIL VALVES; ELECTRIC PREHEATERS FOR OIL PIPE LINES; AND ELECTRIC MOTOR REGULATORS COMPRISING A MOUNTING BRACKET, A TRANSFORMER, AND AN ELECTRIC MOTOR MOVING A LEVER ARM WHICH MAY BE USED TO OPERATE APPARATUS SUCH AS FIRE REGULATORS, BALANCED VALVES AND DAMPERS | 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 |
|---|---|---|---|
| Nov 3, 1992 | EXRG | EXPIRED SEC. 9 | — |
| Jun 6, 1970 | REN1 | REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS) | — |