USPTO serial 72309748
HEAL-S
Reviewed by CopyMark Law Group
Reg. 0888518Status 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 AS BLENDS INCLUDING LIGNOSULFONATES AND CALCIUM CARBONATES USED TO CONTROL THE FLUID LOSS PROPERTIES OF FRESH WATER, SEA WATER, PRODUCED BRINES AND SALT BRINES USED IN WORKOVER, PERFORATION, DRILLING AND COMPLETION OF OIL, GAS AND WATER WELLS | EXPIRED | Sep 30, 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 | — |