USPTO serial 72197098
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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 | PNEUMATIC CONVEYING APPARATUS FOR GRANULAR, CRYSTALLINE AND FIBROUS MATERIAL CAPABLE OF BEING FLUIDIZED INCLUDING A PRESSURE VESSEL WHICH ALTERNATELY RECEIVES SAID MATERIAL AND THEN DISCHARGES SAID MATERIAL IN A FLUIDIZED STATE THROUGH A PIPE | EXPIRED | Jun 18, 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 |
|---|---|---|---|
| Nov 24, 1985 | EXRG | EXPIRED SEC. 9 | — |