USPTO serial 72211445
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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 | ELECTRICAL MOTOR CONTROLLERS IN WHICH SEMICONDUCTOR DEVICES ARE CONNECTED BETWEEN THE INPUT AND OUTPUT TERMINALS OF THE DEVICE TO OBTAIN VARIABLE OUTPUT VOLTAGE THROUGH THE COORDINATION OF A SWITCH AND A CONTROL POTENTIOMETER | 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 |
|---|---|---|---|
| Dec 9, 2006 | CAEX | CANCELLED SEC. 8 (10-YR)/EXPIRED SECTION 9 | — |
| Mar 1, 1986 | REN1 | REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS) | — |
| Feb 21, 1986 | 9.AF | REGISTERED - SEC. 9 FILED/CHECK RECORD FOR SEC. 8 | — |