USPTO serial 72331905
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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 | ELECTRONIC HAND-HELD METAL-MINERAL LOCATOR, OPERATING ON A BEAT-FREQUENCY PRINCIPLE, AND INDICATING THE PROXIMITY OF METAL AND/OR MINERALS BY SOUND AND BY INSTRUMENT DISPLAY, NORMALLY USED TO DETECT METALLIC OBJECTS OR MINERALS UNDERGROUND OR IN WATER | EXPIRED | Dec 20, 1968 |
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 4, 1992 | EXRG | EXPIRED SEC. 9 | — |
| Feb 28, 1977 | C15A | REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK. | — |