USPTO serial 72410542
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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 |
|---|---|---|---|
| 026 | MEASURING APPARATUS USEFUL IN ANALYZING WATER FOR WATER POLLUTION SPECIFICALLY BIOLOGICAL OXYGEN DEMAND ANALYZERS; AND MEASURING APPARATUS USEFUL IN THE MEDICAL HEALTH FIELD-NAMELY, OXYGEN ANALYZERS FOR MEASURING THE METABOLISM OF CELLS BY OXYGEN CONSUMPTION | EXPIRED | Dec 1, 1971 |
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 14, 1995 | EXRG | EXPIRED SEC. 9 | — |