Who owns the BACKPACK trademark?

The BACKPACK trademark is owned by 37SIGNALS LLC.

What class is the BACKPACK trademark registered in?

The BACKPACK trademark is registered in Class 042 (Scientific, technology & SaaS services).

What is the serial number for BACKPACK?

The USPTO serial number for BACKPACK is 78865359.

What is the registration number for BACKPACK?

BACKPACK is registered under USPTO registration number 3206238.

Sealvo

Home Search: BACKPACKBACKPACK #78865359

Back

Updated Oct 24, 2026·16 searches this week

View on USPTO TSDR Find similar marks

BAC

USPTO Trademark Record

REGISTERED

BACKPACK

SN 78865359·Reg 3206238·Filed Apr 19, 2006

Owner 37SIGNALS LLC

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.

BACKPACK (Serial No. 78865359), Registration No. 3206238, is a registered US trademark filed on Apr 19, 2006 by 37SIGNALS LLC. This trademark covers Class 042 (Scientific, technology & SaaS services).

Section 8/9 declaration window: February 06, 2037

Mark Intelligence

BACKPACK (Reg. #3206238) is a registered US trademark that has been protecting its owner, 37SIGNALS LLC, since 2006. The mark covers Class 042 (Scientific, technology & SaaS services). Goods and services include Scientific and technological services and research and design relating thereto; industrial analysis, industrial research.... The mark faced 1 opposition proceeding during prosecution.

FILED

Apr 19, 2006

SERIAL

78865359

REG#

3206238

REGISTERED

Feb 06, 2007

Filing Information

StatusREGISTERED

Filing DateApr 19, 2006

Serial Number78865359

Registration No.3206238

Registration DateFeb 06, 2007

Status DateJun 11, 2026

Published for OppositionNov 21, 2006

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.

0968952

480Jun 16, 2008

Source: USPTO Madrid International Filing Requests

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 042Scientific, technology & SaaS services

US codes: 100, 101

First use anywhere: May 03, 2005

First use in commerce: May 03, 2005

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

Run a conflict check

Search by serial number, mark name, or logo. See conflicting marks ranked by risk with clear explanations of what contributed.

Run conflict check

Status History

53 events

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Jun 11, 2026

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Jun 11, 2026

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

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

Jun 11, 2026

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

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

Jun 11, 2026

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

TEAS SECTION 8 & 9 RECEIVED

Apr 08, 2026

TEAS SECTION 8 & 9 RECEIVED

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

Feb 06, 2026

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

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Jan 09, 2026

TEAS CHANGE OF OWNER ADDRESS RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Jan 09, 2026

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

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

Jan 09, 2026

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jan 09, 2026

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jan 09, 2026

TEAS CHANGE OF CORRESPONDENCE RECEIVED

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

Jul 06, 2025

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jul 06, 2025

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jul 06, 2025

TEAS CHANGE OF CORRESPONDENCE RECEIVED

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Jul 06, 2025

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

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

Dec 11, 2024

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Dec 11, 2024

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Dec 11, 2024

TEAS CHANGE OF CORRESPONDENCE RECEIVED

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

Aug 27, 2024

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Aug 27, 2024

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Aug 27, 2024

TEAS CHANGE OF CORRESPONDENCE RECEIVED

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Sep 28, 2022

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

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

Jul 19, 2022

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jul 19, 2022

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jul 19, 2022

TEAS CHANGE OF CORRESPONDENCE RECEIVED

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Oct 15, 2020

TEAS CHANGE OF OWNER ADDRESS RECEIVED

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

Oct 15, 2020

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Oct 15, 2020

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Oct 15, 2020

TEAS CHANGE OF CORRESPONDENCE RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Oct 15, 2020

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Apr 30, 2016

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Apr 30, 2016

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

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

Apr 30, 2016

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

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

Apr 30, 2016

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

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Feb 22, 2016

TEAS CHANGE OF CORRESPONDENCE RECEIVED

TEAS SECTION 8 & 9 RECEIVED

Feb 22, 2016

TEAS SECTION 8 & 9 RECEIVED

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

Feb 06, 2016

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

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Feb 12, 2014

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Mar 20, 2012

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Mar 20, 2012

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

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

Mar 20, 2012

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

TEAS SECTION 8 & 15 RECEIVED

Feb 09, 2012

TEAS SECTION 8 & 15 RECEIVED

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Jan 30, 2012

TEAS CHANGE OF OWNER ADDRESS RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Jan 30, 2012

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

REGISTERED-PRINCIPAL REGISTER

Feb 06, 2007

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Nov 21, 2006

PUBLISHED FOR OPPOSITION

NOTICE OF PUBLICATION

Nov 01, 2006

NOTICE OF PUBLICATION

LAW OFFICE PUBLICATION REVIEW COMPLETED

Sep 29, 2006

LAW OFFICE PUBLICATION REVIEW COMPLETED

ASSIGNED TO LIE

Sep 22, 2006

ASSIGNED TO LIE

APPROVED FOR PUB - PRINCIPAL REGISTER

Sep 14, 2006

APPROVED FOR PUB - PRINCIPAL REGISTER

ASSIGNED TO EXAMINER

Sep 12, 2006

ASSIGNED TO EXAMINER

NOTICE OF PSEUDO MARK MAILED

Apr 27, 2006

NOTICE OF PSEUDO MARK MAILED

NEW APPLICATION ENTERED

Apr 26, 2006

NEW APPLICATION ENTERED

Other Marks by 37SIGNALS LLC

Additional USPTO filings from the same owner.

LOG

LogoMark

78850716

37SIGNALS LLC

REGISTERED

OMA

OMARCHY

99322411

37signals LLC

REGISTERED

LOG

LogoMark

98652576

37signals LLC

REGISTERED

BAS

BASECAMP

78850314

37SIGNALS LLC

REGISTERED

Other Marks in Class 042 — Scientific, technology & SaaS services

Recently filed and registered marks in the same international class.

BAC

BACKPACK

97977294

BACKPACK GROUP, INC.

REGISTERED

BAC

BACKPACK

97544879

BACKPACK GROUP, INC.

REGISTERED

BAC

BACKPACK

99487349

SLM IP, LLC

PENDING

BAC

BACKPACK

87374503

Backpack Health, LLC

ABANDONED

Other Marks by Mojda Waterman

Additional USPTO filings handled by the same attorney of record.

SUB

SUBSTRATE

98618106

REGISTERED

BRU

BRUNCH SOCIAL

99120586

REGISTERED

CAU

CAUDALIE

79179877

REGISTERED

HIB

HIBERNATE

78702418

REGISTERED

BACKPACK

Run a conflict check

Other Marks by 37SIGNALS LLC

Other Marks in Class 042 — Scientific, technology & SaaS services

Other Marks by Mojda Waterman

Get pre-filing clearance

Search 14M+ trademarks

Resources

Company