Who owns the C trademark?

The C trademark is owned by Chicago Architecture Foundation.

What is the serial number for C?

The USPTO serial number for C is 88057816.

What is the registration number for C?

C is registered under USPTO registration number 5779202.

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Updated Sep 29, 2026·18 searches this week

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USPTO Trademark Record

REGISTERED

C

Q: What class is the C trademark registered in?

The C trademark is registered in Class 035 (Advertising, business management & retail services), Class 041 (Education & entertainment services).

SN 88057816·Reg 5779202·Filed Jul 30, 2018

Owner Chicago Architecture Foundation

Advertising; business management, organization and administration; office functions.; Education; providing of training; entertainment; sporting and cultural activities.

C (Serial No. 88057816), Registration No. 5779202, is a registered US trademark filed on Jul 30, 2018 by Chicago Architecture Foundation. This trademark covers Class 035 (Advertising, business management & retail services), Class 041 (Education & entertainment services).

Section 8/9 declaration window: June 18, 2029

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Full conflict analysis for C (SN 88057816) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

C (Reg. #5779202) is a registered US trademark that has been protecting its owner, Chicago Architecture Foundation, since 2018. The mark covers Class 035 (Advertising, business management & retail services) and Class 041 (Education & entertainment services) respectively. Goods and services include Advertising; business management, organization and administration; office functions.; Education; providing of training; .... The mark faced 1 opposition proceeding during prosecution.

FILED

Jul 30, 2018

SERIAL

88057816

REG#

5779202

REGISTERED

Jun 18, 2019

Filing Information

StatusREGISTERED

Filing DateJul 30, 2018

Serial Number88057816

Registration No.5779202

Registration DateJun 18, 2019

Status DateOct 10, 2025

Published for OppositionApr 02, 2019

Filing Basis & Declarations

Filed as Use ApplicationUse Application CurrentlySection 8 AcceptedSection 15 Acknowledged

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 035Advertising, business management & retail services

US codes: 100, 101, 102

First use anywhere: Nov 30, 2002

First use in commerce: Nov 30, 2002

Advertising; business management, organization and administration; office functions.

Class 041Education & entertainment services

US codes: 100, 101, 107

First use anywhere: Nov 30, 2002

First use in commerce: Nov 30, 2002

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

22 events

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Oct 10, 2025

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Oct 10, 2025

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

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

Oct 10, 2025

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

TEAS SECTION 8 & 15 RECEIVED

Jun 09, 2025

TEAS SECTION 8 & 15 RECEIVED

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

Jun 18, 2024

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

REGISTERED-PRINCIPAL REGISTER

Jun 18, 2019

REGISTERED-PRINCIPAL REGISTER

ASSIGNED TO EXAMINER

Jun 12, 2019

ASSIGNED TO EXAMINER

PUBLISHED FOR OPPOSITION

Apr 02, 2019

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Apr 02, 2019

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Mar 13, 2019

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Feb 22, 2019

APPROVED FOR PUB - PRINCIPAL REGISTER

CORRESPONDENCE RECEIVED IN LAW OFFICE

Feb 04, 2019

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Feb 04, 2019

TEAS/EMAIL CORRESPONDENCE ENTERED

ASSIGNED TO LIE

Feb 03, 2019

ASSIGNED TO LIE

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Jan 30, 2019

TEAS RESPONSE TO OFFICE ACTION RECEIVED

NON-FINAL ACTION WRITTEN

Nov 20, 2018

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Nov 20, 2018

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Nov 20, 2018

NOTIFICATION OF NON-FINAL ACTION E-MAILED

ASSIGNED TO EXAMINER

Nov 15, 2018

ASSIGNED TO EXAMINER

NOTICE OF DESIGN SEARCH CODE E-MAILED

Aug 04, 2018

NOTICE OF DESIGN SEARCH CODE E-MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Aug 03, 2018

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Aug 02, 2018

NEW APPLICATION ENTERED

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