Who owns the CSQUARE trademark?

The CSQUARE trademark is owned by Phoenix Data Center Holdings LLC.

What is the serial number for CSQUARE?

The USPTO serial number for CSQUARE is 99371549.

What is the registration number for CSQUARE?

CSQUARE is registered under USPTO registration number 0.

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Home Search: CSQUARECSQUARE #99371549

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Updated Sep 26, 2026·18 searches this week

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CSQ

USPTO Trademark Record

PENDING

CSQUARE

Q: What class is the CSQUARE trademark registered in?

The CSQUARE trademark is registered in Class 038 (Telecommunications services), Class 042 (Scientific, technology & SaaS services).

SN 99371549·Reg 0·Filed Sep 03, 2025

Owner Phoenix Data Center Holdings LLC

Telecommunications.; Scientific and technological services and research and design relating thereto; industrial analysis, industrial research and industrial design services; quality control and authentication services; design and development of computer hardware and software.

CSQUARE (Serial No. 99371549), Registration No. 0, is a pending US trademark filed on Sep 03, 2025 by Phoenix Data Center Holdings LLC. This trademark covers Class 038 (Telecommunications services), Class 042 (Scientific, technology & SaaS services).

Statement of Use due: October 21, 202625 days remaining

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Mark Intelligence

CSQUARE (Reg. #0) is a pending US trademark that was filed in 2025 and is currently under USPTO examination. The mark covers Class 038 (Telecommunications services) and Class 042 (Scientific, technology & SaaS services) respectively. Goods and services include Telecommunications.; Scientific and technological services and research and design relating thereto; industrial analysis.... The mark faced 1 opposition proceeding during prosecution.

FILED

Sep 03, 2025

SERIAL

99371549

REG#

REGISTERED

Dec 31, 1969

Filing Information

StatusPENDING

Filing DateSep 03, 2025

Serial Number99371549

Registration No.0

Registration DateDec 31, 1969

Status DateApr 21, 2026

Published for OppositionFeb 24, 2026

Filing Basis & Declarations

Standard Characters Claimed

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 038Telecommunications services

US codes: 100, 101, 104

Telecommunications.

Class 042Scientific, technology & SaaS services

US codes: 100, 101

Scientific and technological services and research and design relating thereto; industrial analysis, industrial research and industrial design services; quality control and authentication services; design and development of computer hardware and software.

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

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Status History

16 events

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

Apr 21, 2026

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

PUBLISHED FOR OPPOSITION

Feb 24, 2026

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Feb 24, 2026

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Feb 18, 2026

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Jan 27, 2026

APPROVED FOR PUB - PRINCIPAL REGISTER

EXAMINERS AMENDMENT -WRITTEN

Jan 26, 2026

EXAMINERS AMENDMENT -WRITTEN

EXAMINERS AMENDMENT E-MAILED

Jan 26, 2026

EXAMINERS AMENDMENT E-MAILED

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

Jan 26, 2026

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

EXAMINER'S AMENDMENT ENTERED

Jan 26, 2026

EXAMINER'S AMENDMENT ENTERED

ASSIGNED TO EXAMINER

Jan 23, 2026

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Jan 22, 2026

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

Sep 05, 2025

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Sep 05, 2025

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Sep 05, 2025

TEAS CHANGE OF CORRESPONDENCE RECEIVED

NEW APPLICATION ENTERED

Sep 03, 2025

NEW APPLICATION ENTERED

APPLICATION FILING RECEIPT MAILED

Sep 03, 2025

APPLICATION FILING RECEIPT MAILED

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