USPTO serial 72232415
NORBAPOWER
Reviewed by CopyMark Law Group
Reg. 0821531Status 900
- Filing date
- Status date
- Registration date
- Jan 3, 1967
- 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 |
|---|---|---|---|
| 021 | COMPLETELY SOLID STATE (USING SILICON CONTROLLED RECTIFIERS) ELECTRONIC CONTROL UNIT PROVIDING STEPLESS PROPORTIONAL POWER CONTROL, DELIVERING A LARGE POWER OUTPUT FROM A MICROVOLT INPUT CONTROL SIGNAL AND USED TO CONTROL POWER TO MELTING FURNACES, ELECTRIC BOILERS, AND SPACE HEATERS | EXPIRED | — |
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 |
|---|---|---|---|
| Apr 3, 1987 | EXRG | EXPIRED SEC. 9 | — |