Who owns the CTOS trademark?

The CTOS trademark is owned by Connective Tissue Oncology Society.

What is the serial number for CTOS?

The USPTO serial number for CTOS is 87322828.

What is the registration number for CTOS?

CTOS is registered under USPTO registration number 5294985.

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Updated Oct 1, 2026·17 searches this week

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CTO

USPTO Trademark Record

REGISTERED

CTOS

Q: What class is the CTOS trademark registered in?

The CTOS trademark is registered in Class 041 (Education & entertainment services), Class 042 (Scientific, technology & SaaS services).

SN 87322828·Reg 5294985·Filed Feb 02, 2017

Owner Connective Tissue Oncology Society

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

CTOS (Serial No. 87322828), Registration No. 5294985, is a registered US trademark filed on Feb 02, 2017 by Connective Tissue Oncology Society. This trademark covers Class 041 (Education & entertainment services), Class 042 (Scientific, technology & SaaS services).

renewal 10y period: September 27, 2027360 days remaining

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Full conflict analysis for CTOS (SN 87322828) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

CTOS (Reg. #5294985) is a registered US trademark that has been protecting its owner, Connective Tissue Oncology Society, since 2017. The mark covers Class 041 (Education & entertainment services) and Class 042 (Scientific, technology & SaaS services) respectively. Goods and services include Education; providing of training; entertainment; sporting and cultural activities.; Scientific and technological service.... The mark faced 1 opposition proceeding during prosecution.

FILED

Feb 02, 2017

SERIAL

87322828

REG#

5294985

REGISTERED

Sep 26, 2017

Filing Information

StatusREGISTERED

Filing DateFeb 02, 2017

Serial Number87322828

Registration No.5294985

Registration DateSep 26, 2017

Status DateApr 11, 2023

Published for OppositionJul 11, 2017

Filing Basis & Declarations

Filed as Use ApplicationUse Application CurrentlySection 8 AcceptedSection 15 Acknowledged

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 041Education & entertainment services

US codes: 100, 101, 107

First use anywhere: Aug 31, 2016

First use in commerce: Aug 31, 2016

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

Class 042Scientific, technology & SaaS services

US codes: 100, 101

First use anywhere: Aug 31, 2016

First use in commerce: Aug 31, 2016

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

23 events

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jan 10, 2024

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jan 10, 2024

TEAS CHANGE OF CORRESPONDENCE RECEIVED

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

Jan 10, 2024

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

NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED

Apr 11, 2023

NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED

REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.

Apr 11, 2023

REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Apr 11, 2023

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

TEAS SECTION 8 & 15 RECEIVED

Sep 30, 2022

TEAS SECTION 8 & 15 RECEIVED

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

Sep 26, 2022

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

REGISTERED-PRINCIPAL REGISTER

Sep 26, 2017

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Jul 11, 2017

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Jul 11, 2017

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Jun 21, 2017

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

May 15, 2017

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS/EMAIL CORRESPONDENCE ENTERED

May 12, 2017

TEAS/EMAIL CORRESPONDENCE ENTERED

CORRESPONDENCE RECEIVED IN LAW OFFICE

May 11, 2017

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS RESPONSE TO OFFICE ACTION RECEIVED

May 11, 2017

TEAS RESPONSE TO OFFICE ACTION RECEIVED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

May 04, 2017

NOTIFICATION OF NON-FINAL ACTION E-MAILED

NON-FINAL ACTION E-MAILED

May 04, 2017

NON-FINAL ACTION E-MAILED

NON-FINAL ACTION WRITTEN

May 04, 2017

NON-FINAL ACTION WRITTEN

ASSIGNED TO EXAMINER

Apr 27, 2017

ASSIGNED TO EXAMINER

NOTICE OF DESIGN SEARCH CODE E-MAILED

Feb 08, 2017

NOTICE OF DESIGN SEARCH CODE E-MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Feb 07, 2017

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Feb 06, 2017

NEW APPLICATION ENTERED

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