USPTO serial 72188469
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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 | INVERTERS WHICH ARE SOLID STATE DEVICES FOR USE AS THE INPUT TO AN ELECTRIC MOTORS TO ACCEPT D.C. POWER AT THE INVERTER INPUT TERMINALS AND PRODUCE A.C. POWER AT THE INVERTER OUTPUT TERMINALS; AND CONVERTERS WHICH ARE SOLID STATE DEVICES FOR USE AS THE INPUT TO AN ELECTRIC MOTOR TO ACCEPT A.C. POWER AT ONE FREQUENCY AT THE CONVERTER INPUT TERMINALS AND PRODUCE A.C. POWER AT A DIFFERENT FREQUENCY AT THE CONVERTER OUTPUT TERMINALS | EXPIRED | Mar 2, 1964 |
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 |
|---|---|---|---|
| Aug 13, 2005 | CAEX | CANCELLED SEC. 8 (10-YR)/EXPIRED SECTION 9 | — |
| Nov 10, 1984 | REN1 | REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS) | — |
| Nov 2, 1984 | 9.AF | REGISTERED - SEC. 9 FILED/CHECK RECORD FOR SEC. 8 | — |