USPTO serial 72273936
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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 | SOLID STATE CIRCUIT FOR USE FOR AUTOMATIC ELECTRICAL CONTROLS FOR LIQUID DISTRIBUTION AND SUPPLY SYSTEMS FOR SEWAGE SYSTEMS, AUTOMATIC ELECTRICAL APPARATUS FOR MEASUREMENT AND CONTROL OF FLUID PRESSURE AND LIQUID LEVEL, AUTOMATIC ELECTRICAL PROTECTIVE ALARM AND DETECTION SYSTEMS, ALTERNATORS FOR CONTROLLING THE SEQUENCE OF OPERATION OF ELECTRICAL EQUIPMENT AND ELECTRICAL APPARATUS FOR MONITORING AND TRANSMITTING ELECTRICAL IMPULSES USED IN CONJUNCTION WITH THE ABOVE DESCRIBED CONTROLS AND SYSTEMS | EXPIRED | Feb 3, 1967 |
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 | — |