USPTO serial 72152080
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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 | ELECTRONIC AND ELECTRO-MECHANICAL EQUIPMENTS FOR THE TELEPHONE INDUSTRY-NAMELY, TELEPHONE DOOR ANSWERING, DOOR OPENING, HOME INTERPHONE, LINE AND RINGER ISOLATION, SATURABLE REACTOR, AMPLIFIER, DETECTOR, OSCILLATOR, TONE RINGER, PAGING AMPLIFIER, HEADSET AND SPEAKERPHONE ADAPTOR, SIGNAL BUZZER APPARATUS | EXPIRED | Jul 26, 1962 |
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 |
|---|---|---|---|
| Oct 30, 1987 | EXRG | EXPIRED SEC. 9 | — |