Who owns the PROFESSOR CHALLENGER trademark?

The PROFESSOR CHALLENGER trademark is owned by Conan Doyle Estate Limited.

What class is the PROFESSOR CHALLENGER trademark registered in?

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

What is the serial number for PROFESSOR CHALLENGER?

The USPTO serial number for PROFESSOR CHALLENGER is 79324341.

What is the registration number for PROFESSOR CHALLENGER?

PROFESSOR CHALLENGER is registered under USPTO registration number 6891468.

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Home Search: PROFESSOR CHALLENGERPROFESSOR CHALLENGER #79324341

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PRO

USPTO Trademark Record

REGISTERED

PROFESSOR CHALLENGER

SN 79324341·Reg 6891468·Filed Apr 01, 2021

Owner Conan Doyle Estate Limited

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

PROFESSOR CHALLENGER (Serial No. 79324341), Registration No. 6891468, is a registered US trademark filed on Apr 01, 2021 by Conan Doyle Estate Limited. This trademark covers Class 041 (Education & entertainment services).

early section 8: November 08, 2028

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Full conflict analysis for PROFESSOR CHALLENGER (SN 79324341) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

PROFESSOR CHALLENGER (Reg. #6891468) is a registered US trademark that has been protecting its owner, Conan Doyle Estate Limited, since 2021. The mark covers Class 041 (Education & entertainment services). Goods and services include Education; providing of training; entertainment; sporting and cultural activities.. The mark faced 3 opposition proceedings during prosecution.

FILED

Apr 01, 2021

SERIAL

79324341

REG#

6891468

REGISTERED

Nov 08, 2022

Filing Information

StatusREGISTERED

Filing DateApr 01, 2021

Serial Number79324341

Registration No.6891468

Registration DateNov 08, 2022

Status DateNov 08, 2022

Published for OppositionAug 23, 2022

Filing Basis & Declarations

Standard Characters Claimed

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

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.

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Status History

33 events

NEW REPRESENTATIVE AT IB RECEIVED

Sep 26, 2025

NEW REPRESENTATIVE AT IB RECEIVED

FINAL DECISION TRANSACTION PROCESSED BY IB

Mar 29, 2023

FINAL DECISION TRANSACTION PROCESSED BY IB

FINAL DISPOSITION NOTICE SENT TO IB

Mar 04, 2023

FINAL DISPOSITION NOTICE SENT TO IB

FINAL DISPOSITION PROCESSED

Mar 03, 2023

FINAL DISPOSITION PROCESSED

FINAL DISPOSITION NOTICE CREATED, TO BE SENT TO IB

Feb 08, 2023

FINAL DISPOSITION NOTICE CREATED, TO BE SENT TO IB

REGISTERED-PRINCIPAL REGISTER

Nov 08, 2022

REGISTERED-PRINCIPAL REGISTER

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Nov 08, 2022

NOTICE OF REGISTRATION CONFIRMATION EMAILED

PUBLISHED FOR OPPOSITION

Aug 23, 2022

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Aug 23, 2022

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION PROCESSED BY IB

Aug 23, 2022

NOTIFICATION PROCESSED BY IB

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Aug 03, 2022

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

NOTICE OF START OF OPPOSITION PERIOD CREATED, TO BE SENT TO IB

Aug 03, 2022

NOTICE OF START OF OPPOSITION PERIOD CREATED, TO BE SENT TO IB

NOTIFICATION OF POSSIBLE OPPOSITION SENT TO IB

Aug 03, 2022

NOTIFICATION OF POSSIBLE OPPOSITION SENT TO IB

ASSIGNED TO EXAMINER

Jul 20, 2022

ASSIGNED TO EXAMINER

Jul 20, 2022

ASSIGNED TO EXAMINER

EXAMINERS AMENDMENT -WRITTEN

Jul 20, 2022

EXAMINERS AMENDMENT -WRITTEN

EXAMINERS AMENDMENT E-MAILED

Jul 20, 2022

EXAMINERS AMENDMENT E-MAILED

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

Jul 20, 2022

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

EXAMINER'S AMENDMENT ENTERED

Jul 20, 2022

EXAMINER'S AMENDMENT ENTERED

APPROVED FOR PUB - PRINCIPAL REGISTER

Jul 20, 2022

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS/EMAIL CORRESPONDENCE ENTERED

Jun 28, 2022

TEAS/EMAIL CORRESPONDENCE ENTERED

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Jun 27, 2022

TEAS RESPONSE TO OFFICE ACTION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Jun 27, 2022

CORRESPONDENCE RECEIVED IN LAW OFFICE

REFUSAL PROCESSED BY IB

Jan 15, 2022

REFUSAL PROCESSED BY IB

REFUSAL PROCESSED BY MPU

Dec 29, 2021

REFUSAL PROCESSED BY MPU

NON-FINAL ACTION MAILED - REFUSAL SENT TO IB

Dec 29, 2021

NON-FINAL ACTION MAILED - REFUSAL SENT TO IB

NON-FINAL ACTION (IB REFUSAL) PREPARED FOR REVIEW

Dec 01, 2021

NON-FINAL ACTION (IB REFUSAL) PREPARED FOR REVIEW

NON-FINAL ACTION WRITTEN

Nov 30, 2021

NON-FINAL ACTION WRITTEN

ASSIGNED TO EXAMINER

Nov 16, 2021

ASSIGNED TO EXAMINER

APPLICATION FILING RECEIPT MAILED

Nov 09, 2021

APPLICATION FILING RECEIPT MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Nov 05, 2021

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

LIMITATION FROM ORIGINAL APPLICATION ENTERED

Nov 04, 2021

LIMITATION FROM ORIGINAL APPLICATION ENTERED

SN ASSIGNED FOR SECT 66A APPL FROM IB

Oct 28, 2021

SN ASSIGNED FOR SECT 66A APPL FROM IB

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