USPTO serial 72371541
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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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DOWNERS GROVE, IL
| Class | Description | Status | First use |
|---|---|---|---|
| 021 | TELEPHONE EQUIPMENT-NAMELY, SINGLE FREQUENCY INBAND SIGNALING SYSTEMS, ECHO SUPPRESSORS, TELEPHONE TERMINAL DEVICES, DC SIGNALING EQUIPMENT, VOICE TERMINATING EQUIPMENT, RINGING GENERATORS, SWITCHING EQUIPMENT, LINE AND SPECIAL PURPOSE AMPLIFIERS, AND INTER-TERMINAL TRANSMISSION SYSTEMS | EXPIRED | May 4, 1965 |
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 |
|---|---|---|---|
| Dec 7, 1992 | EXRG | EXPIRED SEC. 9 | — |
| Jul 19, 1977 | C15A | REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK. | — |