USPTO serial 72298299
TDA
Reviewed by CopyMark Law Group
Reg. 0890877Status 900
- Filing date
- Status date
- Registration date
- May 12, 1970
- Examiner
- —
- Law office
- FILE DESTROYED
What this means
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Owner
Goods and services
| Class | Description | Status | First use |
|---|---|---|---|
| 026 | UNIT FOR DETECTING AND TESTING FOR LEAKS OF PARTICULATE MATTER, PRIMARILY IN AIR FILTRATION SYSTEMS, BY MEANS OF FORWARD LIGHT SCATTERING PHOTOMETRY | EXPIRED | Sep 1, 1962 |
Related trademarks
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Prosecution history
| Date | Code | Event | What it means |
|---|---|---|---|
| Nov 4, 1992 | EXRG | EXPIRED SEC. 9 | — |