USPTO serial 71663668
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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 |
|---|---|---|---|
| 015 | OIL ADDITIVE FOR USE IN AUTOMOTIVE AND ENGINE LUBRICATION, SAME BEING ADDED TO LUBRICATING OILS IN AUTOMOBILE ENGINES AND OTHER LUBRICATING OILS AND GREASES, TO PREVENT STICKY VALVES AND TO REDUCE FRICTION | EXPIRED | Feb 15, 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 |
|---|---|---|---|
| Jan 7, 1997 | EXRG | EXPIRED SEC. 9 | — |
| Apr 3, 1976 | REN1 | REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS) | — |