USPTO serial 71651273
Reviewed by CopyMark Law Group
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 |
|---|---|---|---|
| 013 | MIXING VALVES; RADIATOR VALVES; STEAM PRESSURE REGULATORS; SAFETY STEAM AND WATER VALVES; STEAM VALVES AND WATER VALVES | EXPIRED | May 8, 1951 |
| 021 | MANUALLY OPERATED ELECTRIC SWITCHES; RHEOSTATS; AMPLIFIERS; TRANSFORMERS; RELAYS; ELECTRIC MOTORS; ELECTRIC HEATER CYCLERS COMPRISING A HEAT RESPONSIVE RESISTANCE AND AN ELECTRIC HEATER THEREFOR FOR CYCLING CONTROL SYSTEMS; PHOTOCELLS; ELECTRICALLY OPERATED VALVES AND SWITCHES; SEQUENCE CONTROL ELECTRIC SWITCHES; VIBRATORS; AND MANUALLY OPERATED POTENTIOMETERS OF THE RHEOSTAT TYPE | EXPIRED | May 8, 1951 |
| 026 | TEMPERATURE, PRESSURE, HUMIDITY, TIME, LIQUID LEVEL, AND FLAME RESPONSIVE CONTROL VALVES, SWITCHES, AND POTENTIOMETERS; THERMOCOUPLE OPERATED CONTROLS, RECORDERS AND INDICATORS; FLIGHT TEST RECORDERS; SIGNAL CONVERTERS COMPRISING AN AIR SPEED, ALTITUDE, ATTITUDE AND/OR POSITION RESPONSIVE SENSERS FOR OPERATING SWITCHES,VALVES OR POTENTIOMETERS OR THE LIKE; SCANNING SYSTEMS COMPRISING A SIGNAL GENERATOR AND A RECEIVER FOR REFLECTED SIGNALS FROM THE GENERATOR FOR LOCATING OBJECTS; GYROSCOPES; AND ELECTRIC CIRCUIT ANALYZERS SUCH AS VOLTMETERS AND ELECTRIC LIGHTS HAVING PROBES FOR BRIDGING CONTACTS OR ELECTRIC UNITS FOR TESTING THEIR OPERATION | EXPIRED | May 8, 1951 |
| 034 | PILOT BURNERS, HOT AIR REGISTERS AND DAMPER REGULATORS | EXPIRED | May 8, 1951 |
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 |
|---|---|---|---|
| Dec 4, 1995 | EXRG | EXPIRED SEC. 9 | — |
| Mar 1, 1975 | REN1 | REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS) | — |