USPTO serial 72233740
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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 | MOTOR OPERATED SYSTEM CONSISTING OF PLATFORM AND CAGE OPERATING ON GUIDE RAILS EQUIPPED WITH ROLLERS AND TUBES FOR SUPPLYING AIR AND WATER FOR USE IN TRANSPORTING AND MAINTAINING PERSONNEL AND EQUIPMENT IN VERTICAL OR INCLINED SHAFTS WHILE DRILLING, CLEANING, BLASTING, ETC | EXPIRED | — |
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 |
|---|---|---|---|
| Apr 17, 1987 | EXRG | EXPIRED SEC. 9 | — |