USPTO serial 73051909
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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 |
|---|---|---|---|
| 042 | ENGINEERING SERVICES-NAMELY, THE REVIEW OF OPERATIONAL ENERGY REQUIREMENTS, THE PROVISION OF CONSULTATION RELATIVE TO TECHNIQUES, PROCESS DESIGN, AND EQUIPMENT, AND THE PROVISION OF RECOMMENDATIONS RELATIVE TO THE USE OF CHEMICALS TO EFFECT PROPER UTILIZATION OF ENERGY REQUIRED FOR INDUSTRY IN SYSTEMS SUCH AS, BUT NOT LIMITED TO, FURNACES, COOLING SYSTEMS, BOILER SYSTEMS, AIR WASHER SYSTEMS, PROCESS HEAT EXCHANGES, AND WASTE AND EFFLUENT TREATMENT SYSTEMS | EXPIRED | Apr 1, 1975 |
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 28, 1996 | EXRG | EXPIRED SEC. 9 | — |
| Jun 29, 1981 | C15A | REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK. | — |