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Official data from USPTO

SQUARE ROOT OF X

Did you know this trademark is already registered in United States?

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Active USPTO registrationType: CombinedOffice: United States

Quick snapshot

SQUARE ROOT OF X

ST13

US500000088337393

Class

9

Filing

88337393

Registration

5862378

Risk and opportunity diagnosis

Executive reading for naming, filing, and monitoring decisions.

USPTO status

Active USPTO registration

Case type

Application and registration

Recorded events

14

Latest update

08/29/2025

Trademark type

Combined

Nice classes

9

Filing date

03/13/2019

Registration date

09/17/2019

Expiration date

-

Complete case details

Structured fields from the responsible authority and the official record.

Status date

08/28/2025

Last transaction

08/29/2025

Responsible office

United States Patent and Trademark Office

Status code

701

Official register

Principal Register

First use anywhere

02/01/2019

First use in commerce

02/01/2019

Drawing code

3

Owner type

16

Owner location

Hangzhou, CN

Examiner

LIU, PHILIP

Current location

Historical data usage

Mark description

The mark consists of a square root of "X" and a non-closed circle with a dot on the upper right.

Holders and representatives

Holders

Hangzhou Dana Technology Co., Ltd

Representatives

Yue (Robert) Xu Apex Attorneys at Law, LLP

Technical classification

Nice Classes

Class 9

Vienna Codes

No Vienna codes available.

Goods and services

Class 9

Computer operating programsrecorded; Computer software platformsrecordedfor application developmentweb hostingdatabase management; Computers; Downloadable computer application software for mobile phonessoftware for use in working out math problems ; Downloadable computer game programs; Downloadable computer operating software; Downloadable computer software for administration of computer networks; Downloadable computer software for application and database integration; Downloadable computer software for processing digital images; Downloadable electronic publications in the nature of bookmagazine in the field of Computer Software; Laptop computers; Recorded computer operating software; Recorded computer programs for word processing; Tablet computers; Thin client computers

Publications

History of USPTO decisions and trademark events.

14 publications found

NAS8

NOTICE OF ACCEPTANCE OF SEC. 8 - E-MAILED

08/28/2025

8.OK

REGISTERED - SEC. 8 (6-YR) ACCEPTED

08/28/2025

APRE

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

08/27/2025

ES8R

TEAS SECTION 8 RECEIVED

05/14/2025

REM1

COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED

09/17/2024

R.PR

REGISTERED-PRINCIPAL REGISTER

09/17/2019

NPUB

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

07/02/2019

PUBO

PUBLISHED FOR OPPOSITION

07/02/2019

NONP

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

06/12/2019

CNSA

APPROVED FOR PUB - PRINCIPAL REGISTER

05/29/2019

DOCK

ASSIGNED TO EXAMINER

05/23/2019

MDSC

NOTICE OF DESIGN SEARCH CODE E-MAILED

04/02/2019

NWOS

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

03/30/2019

NWAP

NEW APPLICATION ENTERED

03/16/2019

Continuous trademark protection

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