Who owns the X SERIES trademark?

The X SERIES trademark is owned by 8x8, Inc..

What is the serial number for X SERIES?

The USPTO serial number for X SERIES is 87935233.

What is the registration number for X SERIES?

X SERIES is registered under USPTO registration number 6495884.

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Updated Sep 30, 2026·16 searches this week

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XSE

USPTO Trademark Record

REGISTERED

X SERIES

Q: What class is the X SERIES trademark registered in?

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

SN 87935233·Reg 6495884·Filed May 24, 2018

Owner 8x8, Inc.

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.

X SERIES (Serial No. 87935233), Registration No. 6495884, is a registered US trademark filed on May 24, 2018 by 8x8, Inc.. This trademark covers Class 038 (Telecommunications services), Class 042 (Scientific, technology & SaaS services).

Renewal window: September 28, 2027363 days remaining

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Full conflict analysis for X SERIES (SN 87935233) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

X SERIES (Reg. #6495884) is a registered US trademark that has been protecting its owner, 8x8, Inc., since 2018. 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

May 24, 2018

SERIAL

87935233

REG#

6495884

REGISTERED

Sep 28, 2021

Filing Information

StatusREGISTERED

Filing DateMay 24, 2018

Serial Number87935233

Registration No.6495884

Registration DateSep 28, 2021

Status DateSep 28, 2021

Published for OppositionJul 13, 2021

Filing Basis & Declarations

Standard Characters ClaimedUse Application Currently

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 038Telecommunications services

US codes: 100, 101, 104

First use anywhere: Feb 28, 2019

First use in commerce: Feb 28, 2019

Telecommunications.

Class 042Scientific, technology & SaaS services

US codes: 100, 101

First use anywhere: Feb 28, 2019

First use in commerce: Feb 28, 2019

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

52 events

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Mar 12, 2026

TEAS CHANGE OF OWNER ADDRESS RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Mar 12, 2026

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

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

Mar 12, 2026

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Mar 12, 2026

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Mar 12, 2026

TEAS CHANGE OF CORRESPONDENCE RECEIVED

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Oct 05, 2022

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

REGISTERED-PRINCIPAL REGISTER

Sep 28, 2021

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Jul 13, 2021

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Jul 13, 2021

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Jun 23, 2021

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Jun 10, 2021

APPROVED FOR PUB - PRINCIPAL REGISTER

CORRESPONDENCE RECEIVED IN LAW OFFICE

Jun 07, 2021

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Jun 07, 2021

TEAS/EMAIL CORRESPONDENCE ENTERED

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Jun 01, 2021

TEAS RESPONSE TO OFFICE ACTION RECEIVED

NOTICE OF ACCEPTANCE OF AMENDMENT TO ALLEGE USE E-MAILED

Dec 04, 2020

NOTICE OF ACCEPTANCE OF AMENDMENT TO ALLEGE USE E-MAILED

NON-FINAL ACTION WRITTEN

Dec 03, 2020

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Dec 03, 2020

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Dec 03, 2020

NOTIFICATION OF NON-FINAL ACTION E-MAILED

USE AMENDMENT ACCEPTED

Dec 03, 2020

USE AMENDMENT ACCEPTED

TEAS/EMAIL CORRESPONDENCE ENTERED

Nov 07, 2020

TEAS/EMAIL CORRESPONDENCE ENTERED

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Nov 06, 2020

TEAS RESPONSE TO OFFICE ACTION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Nov 06, 2020

CORRESPONDENCE RECEIVED IN LAW OFFICE

FINAL REFUSAL WRITTEN

May 09, 2020

FINAL REFUSAL WRITTEN

NON-FINAL ACTION WRITTEN

May 09, 2020

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

May 09, 2020

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

May 09, 2020

NOTIFICATION OF NON-FINAL ACTION E-MAILED

ASSIGNED TO LIE

Apr 21, 2020

ASSIGNED TO LIE

CORRESPONDENCE RECEIVED IN LAW OFFICE

Apr 21, 2020

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Apr 21, 2020

TEAS/EMAIL CORRESPONDENCE ENTERED

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Apr 17, 2020

TEAS RESPONSE TO OFFICE ACTION RECEIVED

NON-FINAL ACTION WRITTEN

Oct 29, 2019

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Oct 29, 2019

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Oct 29, 2019

NOTIFICATION OF NON-FINAL ACTION E-MAILED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Oct 03, 2019

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Oct 03, 2019

TEAS/EMAIL CORRESPONDENCE ENTERED

USE AMENDMENT FILED

Oct 01, 2019

USE AMENDMENT FILED

AMENDMENT TO USE PROCESSING COMPLETE

Oct 01, 2019

AMENDMENT TO USE PROCESSING COMPLETE

TEAS AMENDMENT OF USE RECEIVED

Sep 30, 2019

TEAS AMENDMENT OF USE RECEIVED

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Sep 30, 2019

TEAS RESPONSE TO OFFICE ACTION RECEIVED

NON-FINAL ACTION WRITTEN

Mar 28, 2019

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Mar 28, 2019

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Mar 28, 2019

NOTIFICATION OF NON-FINAL ACTION E-MAILED

ASSIGNED TO LIE

Mar 05, 2019

ASSIGNED TO LIE

CORRESPONDENCE RECEIVED IN LAW OFFICE

Mar 05, 2019

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Mar 05, 2019

TEAS/EMAIL CORRESPONDENCE ENTERED

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Feb 28, 2019

TEAS RESPONSE TO OFFICE ACTION RECEIVED

NON-FINAL ACTION WRITTEN

Aug 30, 2018

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Aug 30, 2018

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Aug 30, 2018

NOTIFICATION OF NON-FINAL ACTION E-MAILED

ASSIGNED TO EXAMINER

Aug 28, 2018

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Jun 02, 2018

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

May 28, 2018

NEW APPLICATION ENTERED

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