Who owns the QSI trademark?

The QSI trademark is owned by Alvarado, Celso.

What class is the QSI trademark registered in?

The QSI trademark is registered in Class 041 (Education & entertainment services).

The USPTO serial number for QSI is 75743112.

QSI is registered under USPTO registration number 0.

Updated Nov 7, 2026·37 searches this week

QSI

ABANDONED

Education; providing of training; entertainment; sporting and cultural activities.

Class 041Education & entertainment services

US codes: 100, 101, 107

Education; providing of training; entertainment; sporting and cultural activities.

This description is as filed with the USPTO and defines the scope of trademark protection.

Status History

3 events

ABANDONMENT - FAILURE TO RESPOND OR LATE RESPONSE

Sep 11, 2000

Code ABN2

NON-FINAL ACTION MAILED

Dec 01, 1999

Code CNRT

ASSIGNED TO EXAMINER

Nov 17, 1999

Code DOCK