USPTO serial 72202137
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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 |
|---|---|---|---|
| 021 | SWITCHING DEVICES, ELECTRICAL TIMING AND TIME-BASE GENERATORS, ELECTRON TUBES INCLUDING CATHODE RAY TUBES AND FIBER OPTICAL MATERIALS FOR USE THEREWITH, INDUSTRIAL TELEVISION SYSTEMS, AMPLIFIERS, ELECTRONIC IMAGE INTENSIFIERS, WIRING HARNESS, COMMUNICATION CABLLS, SEMICONDUCTOR DEVICES, TRANSISTORS, INTEGRATED COMBINATIONS THEREOF WITH OTHER CIRCUIT ELEMENTS, PHOTO-TRANSISTORS AND PHOTO-DIODES | EXPIRED | Oct 1, 1961 |
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 22, 1987 | EXRG | EXPIRED SEC. 9 | — |