USPTO serial 72139174
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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 |
|---|---|---|---|
| 036 | DEVICE FOR INSTRUCTING AND SELECTING MUSIC CHORDS COMPRISING A TRAY WITH AN ASSOCIATED PIANO PRACTICE KEYBOARD PRINTED ON THE FRONT THEREOF AND SLIDES IN THE TRAY IN THE FORM OF STRIPS OF METAL WITH CHORD IDENTIFICATION INDICIA ON THE FACES THEREOF | EXPIRED | Jan 2, 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 |
|---|---|---|---|
| Nov 18, 1987 | EXRG | EXPIRED SEC. 9 | — |