USPTO serial 72220858
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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 | KITS MADE UP OF ELECTRICAL PARTS FOR CONNECTING INTO THE AUDIO CIRCUIT OF TELEVISION RECEIVING SETS IN ORDER TO PERMIT THE VIEWER TO INTERRUPT THE EMISSION OF SOUND WITHOUT AFFECTING THE VIDEO CIRCUIT | EXPIRED | Aug 3, 1963 |
CopyMark links this record to cited ยง2(d) serials, the owner's other marks, Nice classes, similar mark names, and recently changed USPTO applications.
| Date | Code | Event | What it means |
|---|---|---|---|
| Jun 21, 1987 | EXRG | EXPIRED SEC. 9 | โ |