USPTO serial 72230247
TRITRON
Reviewed by CopyMark Law Group
Reg. 0819883Status 900
- Filing date
- Status date
- Registration date
- Dec 6, 1966
- 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 |
|---|---|---|---|
| 031 | WATER PURIFICATION SYSTEM FOR REMOVING IMPURITIES BY MEANS OF AN ELECTRICAL PULSE OF CONTROLLED SHAPE AND FREQUENCY | EXPIRED | Aug 10, 1965 |
Related trademarks
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Prosecution history
| Date | Code | Event | What it means |
|---|---|---|---|
| Mar 6, 1987 | EXRG | EXPIRED SEC. 9 | — |