USPTO serial 71627949
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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 |
|---|---|---|---|
| 026 | INSTRUMENT FOR PRODUCING PULSE WIDTHS OF .1 TO .25 MICROSECONDS FOR MEASURING TRANSIENT RESPONSES OF MILITARY AND COMMERCIAL RECEIVER AND SYSTEM USING CARRIER FREQUENCIES OF 30 TO 60 MEGACYCLES AND OTHER USES | EXPIRED | Mar 24, 1952 |
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 |
|---|---|---|---|
| Oct 10, 1994 | EXRG | EXPIRED SEC. 9 | — |
| Jan 5, 1974 | REN1 | REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS) | — |