USPTO serial 72309747
BEX
Reviewed by CopyMark Law Group
Reg. 0888517Status 900
- Filing date
- Status date
- Registration date
- Mar 31, 1970
- Examiner
- —
- Law office
- FILE DESTROYED
What this means
This page summarizes the public USPTO record for this serial number, including owners, goods and services, and prosecution history.
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Owner
Goods and services
| Class | Description | Status | First use |
|---|---|---|---|
| 006 | WELLBORE FLUID ADDITIVES IN THE FORM OF NON-COMPLEXING BLENDS OF SYNTHETIC POLYMERS AND CARBONATES USED TO CONTROL THE VISCOSITY, GEL STRENGTH AND FLUID LOSS PROPERTIES OF BRINES AND OTHER FLUIDS USED IN WORKOVER, DRILLING, DEEPENING AND FRACTURING OF OILS, GAS AND WATER WELLS | EXPIRED | Mar 31, 1967 |
Related trademarks
CopyMark links this record to cited §2(d) serials, the owner's other marks, Nice classes, similar mark names, and recently changed USPTO applications.
Prosecution history
| Date | Code | Event | What it means |
|---|---|---|---|
| Nov 4, 1992 | EXRG | EXPIRED SEC. 9 | — |