USPTO serial 72193493
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 |
|---|---|---|---|
| 006 | SOLID MATERIALS WHICH HAVE BEEN IMPREGNATED WITH KRYPTON GAS CONTAINING THE RADIOACTIVE ISOTOPE KRYPTON 85 FOR USE AS A RADIANT ENERGY SOURCE AND FOR THE DETERMINATION OF MATERIAL SURFACE CHARACTERISTICS SUCH AS TEMPERATURE AND WEAR, FOR GAS DETECTION, AND OTHER MEASUREMENT PROBLEMS | EXPIRED | Mar 6, 1964 |
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 18, 1989 | EXRG | EXPIRED SEC. 9 | — |