Who owns the EFF trademark?

The EFF trademark is owned by Electronic Frontier Foundation.

What class is the EFF trademark registered in?

The EFF trademark is registered in Class 035 (Advertising, business management & retail services).

What is the serial number for EFF?

The USPTO serial number for EFF is 86713369.

What is the registration number for EFF?

EFF is registered under USPTO registration number 4949956.

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EFF

USPTO Trademark Record

REGISTERED

EFF

SN 86713369·Reg 4949956·Filed Aug 03, 2015

Owner Electronic Frontier Foundation

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

EFF (Serial No. 86713369), Registration No. 4949956, is a registered US trademark filed on Aug 03, 2015 by Electronic Frontier Foundation. This trademark covers Class 035 (Advertising, business management & retail services).

Section 8/9 declaration window: May 05, 2036

Conflict Analysis

Full conflict analysis for EFF (SN 86713369) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

EFF (Reg. #4949956) is a registered US trademark that has been protecting its owner, Electronic Frontier Foundation, since 2015. The mark covers Class 035 (Advertising, business management & retail services). Goods and services include Advertising; business management, organization and administration; office functions.. The mark faced 1 opposition proceeding during prosecution.

FILED

Aug 03, 2015

SERIAL

86713369

REG#

4949956

REGISTERED

May 03, 2016

Filing Information

StatusREGISTERED

Filing DateAug 03, 2015

Serial Number86713369

Registration No.4949956

Registration DateMay 03, 2016

Status DateSep 10, 2025

Published for OppositionFeb 16, 2016

Filing Basis & Declarations

Standard Characters ClaimedFiled as Use ApplicationUse Application CurrentlySection 8 AcceptedSection 15 Acknowledged

International Filings

Madrid Protocol1 filings

This mark has 1 Madrid Protocol filing on record with the USPTO.

1467209

480Jan 28, 2019

Source: USPTO Madrid International Filing Requests

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 035Advertising, business management & retail services

US codes: 100, 101, 102

First use anywhere: Oct 20, 1996

First use in commerce: Oct 20, 1996

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

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

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Status History

36 events

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

Sep 10, 2025

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

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

Sep 10, 2025

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

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

Sep 10, 2025

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

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Sep 08, 2025

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Aug 22, 2025

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Aug 22, 2025

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Aug 22, 2025

TEAS CHANGE OF CORRESPONDENCE RECEIVED

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

Aug 22, 2025

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Aug 22, 2025

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Aug 22, 2025

TEAS CHANGE OF CORRESPONDENCE RECEIVED

TEAS SECTION 8 & 9 RECEIVED

May 07, 2025

TEAS SECTION 8 & 9 RECEIVED

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

May 03, 2025

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

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

Dec 15, 2022

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Dec 15, 2022

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Dec 15, 2022

TEAS CHANGE OF CORRESPONDENCE RECEIVED

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

Jun 16, 2022

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

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Jun 15, 2022

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Jun 15, 2022

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

TEAS SECTION 8 & 15 RECEIVED

Jan 03, 2022

TEAS SECTION 8 & 15 RECEIVED

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

Jun 25, 2021

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jun 25, 2021

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jun 25, 2021

TEAS CHANGE OF CORRESPONDENCE RECEIVED

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

May 03, 2021

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

REGISTERED-PRINCIPAL REGISTER

May 03, 2016

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Feb 16, 2016

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Feb 16, 2016

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Jan 27, 2016

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

EXAMINERS AMENDMENT -WRITTEN

Nov 25, 2015

EXAMINERS AMENDMENT -WRITTEN

EXAMINERS AMENDMENT E-MAILED

Nov 25, 2015

EXAMINERS AMENDMENT E-MAILED

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

Nov 25, 2015

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

EXAMINER'S AMENDMENT ENTERED

Nov 25, 2015

EXAMINER'S AMENDMENT ENTERED

APPROVED FOR PUB - PRINCIPAL REGISTER

Nov 25, 2015

APPROVED FOR PUB - PRINCIPAL REGISTER

ASSIGNED TO EXAMINER

Nov 12, 2015

ASSIGNED TO EXAMINER

NOTICE OF PSEUDO MARK E-MAILED

Aug 08, 2015

NOTICE OF PSEUDO MARK E-MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Aug 07, 2015

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Aug 06, 2015

NEW APPLICATION ENTERED

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