USPTO serial 72289098
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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 |
|---|---|---|---|
| 023 | MACHINES FOR CLASSIFYING OR SORTING FINELY DIVIDED SOLID MATERIALS COMPRISED OF A MIXTURE OF RELATIVELY FINE AND COARSE PORTIONS, BY THE ACTION OF A GASEOUS STREAM OR STREAMS WHEREIN THE FINE PORTION OR PORTIONS OF THE FINELY DIVIDED SOLID MATERIALS IS SELECTIVELY COLLECTED IN A GASEOUS STREAM OR STREAMS SEPARATE FROM THE RELATIVELY COARSE PORTION OR PORTIONS | EXPIRED | Apr 20, 1967 |
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 | — |