USPTO serial 71597970
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 |
|---|---|---|---|
| 021 | ROOM FIRE ALARMS CONSISTING OF A CONTROL UNIT HAVING ELECTRICAL CONTROLS AND AN ALARM OR SOUNDING ELEMENT, AND THERMOSTATS CONTAINING HEAT-SENSITIVE ELEMENTS SO ARRANGES AS TO MAKE ELECTRICAL CONTACT WHEN THE ROOM TEMPERATURE ATTAINS A PREDETERMINED LEVEL, THEREBY SETTING OFF THE ALARM CONTAINED IN THE CONTROL UNIT | EXPIRED | Apr 20, 1950 |
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 |
|---|---|---|---|
| Nov 3, 1992 | EXRG | EXPIRED SEC. 9 | — |
| May 22, 1971 | REN1 | REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS) | — |