USPTO serial 71456815
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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 |
|---|---|---|---|
| 023 | MECHANICALLY DRIVEN MIXING DEVICES FOR CEMENTITIOUS MATERIALS, RECEPTACLES CONNECTED THERETO FOR RECEIVING SAID MIXED CEMENTITIOUS MATERIALS THEREFROM, AND MEANS FOR DISCHARGING SAID MATERIALS FROM SAID RECEPTACLES UNDER PRESSURE, TOGETHER WITH PARTS THEREOF | EXPIRED | Oct 19, 1942 |
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 |
|---|---|---|---|
| Jan 10, 1986 | EXRG | EXPIRED SEC. 9 | — |