USPTO serial 71613458
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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 |
|---|---|---|---|
| 026 | INSTRUMENT WHICH IS A HETERODYNE TYPE ANALYZER AND PROVIDES AN IMMEDIATELY AVAILABLE VISUAL DISPLAY OF THE FREQUENCY COMPONENTS IN COMPLEX AUDIO WAVE FORMS AND IS USEFUL TO INDICATE THE COMPOSITION OF VIBRATION AND NOISE SIGNALS AND OTHER USES | EXPIRED | Sep 9, 1949 |
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 |
|---|---|---|---|
| May 16, 1994 | EXRG | EXPIRED SEC. 9 | — |
| Aug 11, 1973 | REN1 | REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS) | — |