USPTO serial 71451010
PULSOTRON
Reviewed by CopyMark Law Group
Reg. 0396954Status 900
- Filing date
- Status date
- Registration date
- Aug 11, 1942
- 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 | ELECTRON DISCHARGE DEVICE OF THE HIGH VACUUM TRIODE TYPE ADAPTED FOR OPERATION AS AMPLIFIER MODULATOR OR OSCILLATOR AT SHORT WAVES, ULTRA-SHORT WAVES, AND MICRO WAVES | EXPIRED | Dec 15, 1941 |
Related trademarks
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Prosecution history
| Date | Code | Event | What it means |
|---|---|---|---|
| Jan 10, 1986 | EXRG | EXPIRED SEC. 9 | — |