USPTO serial 72346200
CANARY
Reviewed by CopyMark Law Group
Reg. 0895509Status 900
- Filing date
- Status date
- Registration date
- Jul 28, 1970
- 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 |
|---|---|---|---|
| 026 | PERMISSIBLE METHANE DETECTOR, FOR DETECTING AND MEASURING PERCENTAGE OF METHANE GAS IN THE ATMOSPHERE OF ENCLOSED AREAS SUCH AS MINING AREAS | EXPIRED | Nov 6, 1969 |
Related trademarks
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Prosecution history
| Date | Code | Event | What it means |
|---|---|---|---|
| Nov 4, 1992 | EXRG | EXPIRED SEC. 9 | — |