USPTO serial 71648538
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 |
|---|---|---|---|
| 103 | WELL TREATING SERVICE-NAMELY, INJECTION OF A SAND SUSPENSION INTO THE WELL AT A PREDETERMINED POINT TO PACK THE FORMATION AGAINST SLOUGHING AND SHIFTING | EXPIRED | May 11, 1953 |
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 |
|---|---|---|---|
| May 8, 1995 | EXRG | EXPIRED SEC. 9 | — |
| Aug 3, 1974 | REN1 | REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS) | — |