USPTO serial 72437455
RHEO-PLOT
Reviewed by CopyMark Law Group
Reg. 0975963Status 900
- Filing date
- Status date
- Registration date
- Jan 1, 1974
- Examiner
- —
- Law office
- —
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 |
|---|---|---|---|
| 037 | CHART OR GRAPH USED TO PLOT RHEOLOGY OF OIL WELL DRILLING FLUIDS | EXPIRED | Aug 20, 1972 |
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 |
|---|---|---|---|
| Oct 10, 1994 | EXRG | EXPIRED SEC. 9 | — |
| Feb 4, 1980 | C15A | REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK. | — |