USPTO serial 71633232
MAG-A-TROL
Reviewed by CopyMark Law Group
Reg. 0587227Status 900
- Filing date
- Status date
- Registration date
- Mar 23, 1954
- 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 |
|---|---|---|---|
| 021 | COMPENSATOR FOR CONTROL OF THE GENERATOR FREQUENCY AND OUTPUT VOLTAGE OF A MOTOR-GENERATOR SET BY VARYING THE EXCITATION OF THE MOTOR FIELD FOR THE FREQUENCY CONTROL AND THE GENERATOR FIELD FOR THE VOLTAGE CONTROL | EXPIRED | Jun 3, 1952 |
Related trademarks
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Prosecution history
| Date | Code | Event | What it means |
|---|---|---|---|
| Dec 26, 1994 | EXRG | EXPIRED SEC. 9 | — |
| Mar 23, 1974 | REN1 | REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS) | — |