USPTO serial 72343563
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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 |
|---|---|---|---|
| 021 | SACRIFICIAL ANODE ASSEMBLIES TO PREVENT THE ELECTROLYTIC CORROSION OF STEEL PIPE LINES, TANKS AND THE LIKE COMPRISING A MAGNESIUM ANODE ENCASED IN A SACK CONTAINING BACK FILL MATERIAL | EXPIRED | Oct 29, 1956 |
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 4, 1992 | EXRG | EXPIRED SEC. 9 | — |
| Oct 4, 1982 | CNSA | APPROVED FOR PUB - PRINCIPAL REGISTER | — |
| Sep 10, 1982 | DOCK | ASSIGNED TO EXAMINER | — |