USPTO serial 71553053
HYDROTHERM
Reviewed by CopyMark Law Group
Reg. 0523426Status 900
- Filing date
- Status date
- Registration date
- Apr 4, 1950
- 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 |
|---|---|---|---|
| 034 | HEATING EQUIPMENT-NAMELY, HEAT EXCHANGERS; FREE OF ANY COMBUSTION PROCESS AND RADIATORS, PARTICULARLY WATER RADIATORS, FOR HIGH TEMPERATURE LIQUIDS ABOVE 220' F., FOR USE IN LARGE BUILDINGS AND IN INDUSTRIAL AND DISTRICT HEATING SYSTEMS | EXPIRED | Mar 16, 1948 |
Related trademarks
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Prosecution history
| Date | Code | Event | What it means |
|---|---|---|---|
| Nov 3, 1992 | EXRG | EXPIRED SEC. 9 | — |
| Apr 4, 1970 | REN1 | REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS) | — |