USPTO serial 72148979
KEYSPARK
Reviewed by CopyMark Law Group
Reg. 0748718Status 900
- Filing date
- Status date
- Registration date
- Apr 30, 1963
- 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 | MATERIAL IN THE FORM OF SLUGS OR BLOCKS TO BE USED IN THE PRODUCTION OF ELECTRODES FOR USE IN CUTTING VARIOUS MATERIALS BY THE ELECTRICAL DISCHARGE METHOD | EXPIRED | Jun 22, 1962 |
Related trademarks
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Prosecution history
| Date | Code | Event | What it means |
|---|---|---|---|
| Sep 17, 1987 | EXRG | EXPIRED SEC. 9 | — |