Who owns the C4 trademark?

The C4 trademark is owned by C4 Welding, Inc..

What is the serial number for C4?

The USPTO serial number for C4 is 86294536.

What is the registration number for C4?

C4 is registered under USPTO registration number 4729165.

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USPTO Trademark Record

REGISTERED

C4

Q: What class is the C4 trademark registered in?

The C4 trademark is registered in Class 040 (Treatment & processing of materials), Class 042 (Scientific, technology & SaaS services).

SN 86294536·Reg 4729165·Filed May 29, 2014

Owner C4 Welding, Inc.

Treatment of materials; recycling of waste and trash; air purification and treatment of water; printing services; food and drink preservation.; 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.

C4 (Serial No. 86294536), Registration No. 4729165, is a registered US trademark filed on May 29, 2014 by C4 Welding, Inc.. This trademark covers Class 040 (Treatment & processing of materials), Class 042 (Scientific, technology & SaaS services).

Section 8/9 declaration window: April 30, 2035

Conflict Analysis

Full conflict analysis for C4 (SN 86294536) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

C4 (Reg. #4729165) is a registered US trademark that has been protecting its owner, C4 Welding, Inc., since 2014. The mark covers Class 040 (Treatment & processing of materials) and Class 042 (Scientific, technology & SaaS services) respectively. Goods and services include Treatment of materials; recycling of waste and trash; air purification and treatment of water; printing services; food a.... The mark faced 1 opposition proceeding during prosecution.

FILED

May 29, 2014

SERIAL

86294536

REG#

4729165

REGISTERED

Apr 28, 2015

Filing Information

StatusREGISTERED

Filing DateMay 29, 2014

Serial Number86294536

Registration No.4729165

Registration DateApr 28, 2015

Status DateAug 27, 2025

Published for OppositionOct 21, 2014

Filing Basis & Declarations

Use Application CurrentlySection 8 AcceptedSection 15 Acknowledged

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 040Treatment & processing of materials

US codes: 100, 103, 106

First use anywhere: Jun 30, 2014

First use in commerce: Jun 30, 2014

Treatment of materials; recycling of waste and trash; air purification and treatment of water; printing services; food and drink preservation.

Class 042Scientific, technology & SaaS services

US codes: 100, 101

First use anywhere: Jun 30, 2014

First use in commerce: Jun 30, 2014

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

27 events

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

Aug 27, 2025

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

Aug 27, 2025

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED

Aug 27, 2025

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Aug 25, 2025

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

TEAS SECTION 8 & 9 RECEIVED

Apr 17, 2025

TEAS SECTION 8 & 9 RECEIVED

COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED

Apr 28, 2024

COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Oct 22, 2020

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Oct 22, 2020

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

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

Oct 22, 2020

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

TEAS SECTION 8 & 15 RECEIVED

Sep 01, 2020

TEAS SECTION 8 & 15 RECEIVED

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

Apr 28, 2020

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

REGISTERED-PRINCIPAL REGISTER

Apr 28, 2015

REGISTERED-PRINCIPAL REGISTER

NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED

Mar 25, 2015

NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

Mar 24, 2015

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

STATEMENT OF USE PROCESSING COMPLETE

Mar 05, 2015

STATEMENT OF USE PROCESSING COMPLETE

CASE ASSIGNED TO INTENT TO USE PARALEGAL

Mar 02, 2015

CASE ASSIGNED TO INTENT TO USE PARALEGAL

TEAS STATEMENT OF USE RECEIVED

Jan 27, 2015

TEAS STATEMENT OF USE RECEIVED

USE AMENDMENT FILED

Jan 27, 2015

USE AMENDMENT FILED

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

Dec 16, 2014

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

PUBLISHED FOR OPPOSITION

Oct 21, 2014

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Oct 21, 2014

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Oct 01, 2014

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Sep 12, 2014

APPROVED FOR PUB - PRINCIPAL REGISTER

ASSIGNED TO EXAMINER

Sep 11, 2014

ASSIGNED TO EXAMINER

NOTICE OF DESIGN SEARCH CODE E-MAILED

Jun 12, 2014

NOTICE OF DESIGN SEARCH CODE E-MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Jun 11, 2014

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Jun 02, 2014

NEW APPLICATION ENTERED

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