Who owns the E F F trademark?

The E F F trademark is owned by HAT WORLD, INC..

What class is the E F F trademark registered in?

The E F F trademark is registered in Class 025 (Clothing, footwear & headgear).

What is the serial number for E F F?

The USPTO serial number for E F F is 87510756.

What is the registration number for E F F?

E F F is registered under USPTO registration number 5391150.

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Home Search: E F FE F F #87510756

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Updated Sep 28, 2026·42 searches this week

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EFF

USPTO Trademark Record

REGISTERED

E F F

SN 87510756·Reg 5391150·Filed Jun 29, 2017

Owner HAT WORLD, INC.

Clothing, footwear, headwear.

E F F (Serial No. 87510756), Registration No. 5391150, is a registered US trademark filed on Jun 29, 2017 by HAT WORLD, INC.. This trademark covers Class 025 (Clothing, footwear & headgear).

Section 8/9 declaration window: January 31, 2028

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Mark Intelligence

E F F (Reg. #5391150) is a registered US trademark that has been protecting its owner, HAT WORLD, INC., since 2017. The mark covers Class 025 (Clothing, footwear & headgear). Goods and services include Clothing, footwear, headwear.. The mark faced 1 opposition proceeding during prosecution.

FILED

Jun 29, 2017

SERIAL

87510756

REG#

5391150

REGISTERED

Jan 30, 2018

Filing Information

StatusREGISTERED

Filing DateJun 29, 2017

Serial Number87510756

Registration No.5391150

Registration DateJan 30, 2018

Status DateAug 15, 2024

Published for OppositionNov 14, 2017

Filing Basis & Declarations

Filed as Use ApplicationUse Application CurrentlySection 8 AcceptedSection 15 AcknowledgedTrademark

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 025Clothing, footwear & headgear

US codes: 022, 039

First use anywhere: Jan 01, 2014

First use in commerce: Jan 01, 2014

Clothing, footwear, headwear.

This description is as filed with the USPTO and defines the scope of trademark protection.

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Status History

24 events

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Apr 25, 2025

TEAS CHANGE OF OWNER ADDRESS RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Apr 25, 2025

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

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

Apr 25, 2025

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Apr 25, 2025

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Apr 25, 2025

TEAS CHANGE OF CORRESPONDENCE RECEIVED

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

Jan 29, 2025

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jan 29, 2025

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jan 29, 2025

TEAS CHANGE OF CORRESPONDENCE RECEIVED

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Jan 29, 2025

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Aug 15, 2024

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Aug 15, 2024

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

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

Aug 15, 2024

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

TEAS SECTION 8 & 15 RECEIVED

Jan 30, 2024

TEAS SECTION 8 & 15 RECEIVED

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Aug 09, 2023

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

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

Jan 30, 2023

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

REGISTERED-PRINCIPAL REGISTER

Jan 30, 2018

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Nov 14, 2017

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Nov 14, 2017

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Oct 25, 2017

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Oct 03, 2017

APPROVED FOR PUB - PRINCIPAL REGISTER

ASSIGNED TO EXAMINER

Sep 26, 2017

ASSIGNED TO EXAMINER

NOTICE OF DESIGN SEARCH CODE E-MAILED

Jul 08, 2017

NOTICE OF DESIGN SEARCH CODE E-MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Jul 07, 2017

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Jul 03, 2017

NEW APPLICATION ENTERED

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