Who owns the PROTONMAIL trademark?

The PROTONMAIL trademark is owned by PROTON AG.

What class is the PROTONMAIL trademark registered in?

The PROTONMAIL trademark is registered in Class 038 (Telecommunications services).

What is the serial number for PROTONMAIL?

The USPTO serial number for PROTONMAIL is 86405688.

What is the registration number for PROTONMAIL?

PROTONMAIL is registered under USPTO registration number 4751245.

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Home Search: PROTONMAILPROTONMAIL #86405688

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Updated Sep 24, 2026·15 searches this week

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PRO

USPTO Trademark Record

REGISTERED

PROTONMAIL

SN 86405688·Reg 4751245·Filed Sep 25, 2014

Owner PROTON AG

Telecommunications.

PROTONMAIL (Serial No. 86405688), Registration No. 4751245, is a registered US trademark filed on Sep 25, 2014 by PROTON AG. This trademark covers Class 038 (Telecommunications services).

Section 8/9 declaration window: June 11, 2035

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PROTONMAIL (Reg. #4751245) is a registered US trademark that has been protecting its owner, PROTON AG, since 2014. The mark covers Class 038 (Telecommunications services). Goods and services include Telecommunications.. The mark faced 1 opposition proceeding during prosecution.

FILED

Sep 25, 2014

SERIAL

86405688

REG#

4751245

REGISTERED

Jun 09, 2015

Filing Information

StatusREGISTERED

Filing DateSep 25, 2014

Serial Number86405688

Registration No.4751245

Registration DateJun 09, 2015

Status DateOct 02, 2025

Published for OppositionMar 24, 2015

Filing Basis & Declarations

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

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 038Telecommunications services

US codes: 100, 101, 104

First use anywhere: Jun 30, 2014

First use in commerce: Jun 30, 2014

Telecommunications.

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

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Status History

43 events

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

Mar 05, 2026

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Mar 05, 2026

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Mar 05, 2026

TEAS CHANGE OF CORRESPONDENCE RECEIVED

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Mar 05, 2026

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Oct 02, 2025

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Oct 02, 2025

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

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

Oct 02, 2025

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

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

Oct 02, 2025

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

TEAS SECTION 8 & 9 RECEIVED

Jun 09, 2025

TEAS SECTION 8 & 9 RECEIVED

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

Jun 10, 2024

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

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Oct 11, 2022

TEAS CHANGE OF OWNER ADDRESS RECEIVED

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

Oct 11, 2022

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Oct 11, 2022

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Oct 11, 2022

TEAS CHANGE OF CORRESPONDENCE RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Oct 11, 2022

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

May 19, 2022

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Sep 20, 2021

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Sep 20, 2021

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

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

Sep 20, 2021

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

TEAS SECTION 8 & 15 RECEIVED

Jun 07, 2021

TEAS SECTION 8 & 15 RECEIVED

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

Nov 03, 2020

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Nov 03, 2020

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Nov 03, 2020

TEAS CHANGE OF CORRESPONDENCE RECEIVED

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

Jun 09, 2020

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

REGISTERED-PRINCIPAL REGISTER

Jun 09, 2015

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Mar 24, 2015

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Mar 24, 2015

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Mar 04, 2015

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Feb 17, 2015

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Feb 17, 2015

TEAS/EMAIL CORRESPONDENCE ENTERED

APPROVED FOR PUB - PRINCIPAL REGISTER

Feb 17, 2015

APPROVED FOR PUB - PRINCIPAL REGISTER

LAW OFFICE PUBLICATION REVIEW COMPLETED

Feb 17, 2015

LAW OFFICE PUBLICATION REVIEW COMPLETED

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Feb 10, 2015

TEAS RESPONSE TO OFFICE ACTION RECEIVED

ASSIGNED TO EXAMINER

Jan 14, 2015

ASSIGNED TO EXAMINER

NON-FINAL ACTION WRITTEN

Jan 14, 2015

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Jan 14, 2015

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Jan 14, 2015

NOTIFICATION OF NON-FINAL ACTION E-MAILED

PRELIMINARY/VOLUNTARY AMENDMENT - ENTERED

Oct 24, 2014

PRELIMINARY/VOLUNTARY AMENDMENT - ENTERED

ASSIGNED TO LIE

Oct 17, 2014

ASSIGNED TO LIE

TEAS VOLUNTARY AMENDMENT RECEIVED

Oct 16, 2014

TEAS VOLUNTARY AMENDMENT RECEIVED

NOTICE OF PSEUDO MARK E-MAILED

Oct 04, 2014

NOTICE OF PSEUDO MARK E-MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Oct 03, 2014

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Sep 29, 2014

NEW APPLICATION ENTERED

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