USPTO serial 72207281
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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 |
|---|---|---|---|
| 034 | AIR-GAS BURNERS DESIGNED FOR INDUSTRIAL USE AND PROVIDED WITH MANUALLY-ADJUSTABLE MEANS FOR EFFECTING CHANGES IN FLAME CHARACTERISTICS WITHOUT VARYING AIR-GAS RATIO | EXPIRED | Apr 15, 1957 |
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 14, 1989 | EXRG | EXPIRED SEC. 9 | — |