USPTO serial 72277727
Reviewed by CopyMark Law Group
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 | ELECTRONIC DISTRIBUTION SYSTEMS-NAMELY, CENTRAL OFFICE AND SUBSCRIBER CARRIER UNITS FOR A TELEPHONE SYSTEM, FOR CONNECTION TO AN EXISTING CABLE PAIR, BOTH AT THE CENTRAL OFFICE AND AT THE SUBSCRIBER'S LOCATION SO THAT AN ADDITIONAL CIRCUIT AND AN ADDITIONAL TELEPHONE SET CAN BE SUPPLIED AT THE SUBSCRIBER'S LOCATION | 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 |
|---|---|---|---|
| Nov 3, 1992 | EXRG | EXPIRED SEC. 9 | — |