USPTO serial 71641599
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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 | THERMOMETERS, INSTRUMENTS FOR ANALYZING FLUE GASES, INSTRUMENTS FOR TESTING THE CHEMICAL TEMPERATURE AND PRESSURE CONDITION OF GASES PRODUCED BY FUEL BURNERS, INSTRUMENTS FOR MEASURING ENGINE CYLINDER PRESSURES, INSTRUMENTS FOR TESTING ENGINE INJECTOR NOZZLES, AND SIMILAR INSTRUMENTS FOR INDICATING AIR VELOCITY IN AIR CONDITIONING AND VENTILATING SYSTEMS, FOR PRODUCING PRESSURE-TIME DIAGRAMS FOR HIGH-SPEED ENGINES, FOR PRODUCING PRESSURE VOLUME DIAGRAMS FOR DIESEL ENGINES, FOR MEASURING STACK TEMPERATURES IN FLUE GAS CHIMNEYS, FOR MEASURING THE CONTENT OF SOLIDS IN FLUE GASES FOR BOTH DOMESTIC AND COMMERCIAL USE | EXPIRED | Jul 11, 1952 |
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 31, 1995 | EXRG | EXPIRED SEC. 9 | — |
| Oct 26, 1974 | REN1 | REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS) | — |