USPTO serial 73077883
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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 |
|---|---|---|---|
| 011 | HEAT PIPES AND THERMAL ENERGY RECOVERY SYSTEMS UTILIZING HEAT PIPE HEAT EXCHANGERS FOR RECOVERING WASTE THERMAL ENERGY | EXPIRED | Jan 16, 1970 |
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 26, 1998 | EXRG | EXPIRED SEC. 9 | — |
| Sep 6, 1983 | C15A | REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK. | — |