USPTO serial 71660002
Reviewed by CopyMark Law Group
This page summarizes the public USPTO record for this serial number, including owners, goods and services, and prosecution history.
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HUNTINGTON PARK, CA
| Class | Description | Status | First use |
|---|---|---|---|
| 013 | CONTROL VALVE FOR FLUID OPERATED HYDRAULIC PUMP INSTALLATIONS; SELECTOR VALVE FOR CONTROLLING DIRECTION OF OIL THROUGH BOTTOM HOLE PUMP ASSEMBLIES; STANDING VALVE ASSEMBLY ADAPTED TO REST WITHIN A BOTTOM HOLE ASSEMBLY FOR PROVIDING COMMUNICATION BETWEEN THE INTAKE OF A BOTTOM HOLE HYDRAULIC OIL WELL PUMP THROUGH THE BOTTOM HOLE ASSEMBLY WITH THE OIL WELL BORE AND FOR SHUTTING OFF SAID COMMUNICATION WHEN THE PUMP IS REMOVED FROM THE BOTTOM HOLE ASSEMBLY; CHECK VALVE FOR USE WITHIN POWER TUBING TO PREVENT BACKFLOW OF WELL FLUID THROUGH A BOTTOM HOLE HYDRAULIC PUMP WHEN THE LATTER IS LOWERED INTO AN OIL WELL; AND SMALL DIAMETER HIGH PRESSURE PIPE AND TUBING | EXPIRED | — |
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 |
|---|---|---|---|
| Sep 11, 1995 | EXRG | EXPIRED SEC. 9 | — |
| Dec 7, 1974 | REN1 | REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS) | — |