USPTO serial 72243361
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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 |
|---|---|---|---|
| 034 | HEAT EXCHANGERS OF THE TUBE AND SHELL TYPE, PLATE AND FIN TYPE, AND WATER BOILING EVAPORATIVE TYPE, FOR GENERAL APPLICATIONS WHERE IT IS DESIRABLE TO MODIFY THE TEMPERATURE OF A FIRST FLUID BY REFERENCE TO A SECOND FLUID | 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 |
|---|---|---|---|
| Jul 18, 1987 | EXRG | EXPIRED SEC. 9 | — |