USPTO serial 71538587
HYDROVAC
Reviewed by CopyMark Law Group
Reg. 0530782Status 900
- Filing date
- Status date
- Registration date
- Sep 19, 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 |
|---|---|---|---|
| 023 | DUST HANDLING APPARATUS INCLUDING DUST COLLECTING HOPPERS, VALVES TO REMOVE DUST FROM SUCH HOPPERS, PIPING THROUGH WHICH SUCH DUST MAY BE CONVEYED AND MEANS FOR CREATING VACUUM OR SUBATMOSPHERIC PRESSURE IN SAID PIPING AND VALVES, SUCH APPARATUS BEING USED PARTICULARLY IN CONNECTION WITH COAL BURNING FURNACES | EXPIRED | May 6, 1947 |
Related trademarks
CopyMark links this record to cited §2(d) serials, the owner's other marks, Nice classes, similar mark names, and recently changed USPTO applications.
Prosecution history
| Date | Code | Event | What it means |
|---|---|---|---|
| Nov 3, 1992 | EXRG | EXPIRED SEC. 9 | — |
| Sep 19, 1970 | REN1 | REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS) | — |