Who owns the DUO-FAST trademark?

The DUO-FAST trademark is owned by ILLINOIS TOOL WORKS INC..

What class is the DUO-FAST trademark registered in?

The DUO-FAST trademark is registered in Class 013 (Firearms, ammunition & explosives).

What is the serial number for DUO-FAST?

The USPTO serial number for DUO-FAST is 72223547.

What is the registration number for DUO-FAST?

DUO-FAST is registered under USPTO registration number 804513.

Sealvo

Home Search: DUO-FASTDUO-FAST #72223547

Back

Updated Sep 23, 2026·38 searches this week

View on USPTO TSDR Find similar marks

DUO

USPTO Trademark Record

REGISTERED

DUO-FAST

SN 72223547·Reg 804513·Filed Jul 16, 1965

Owner ILLINOIS TOOL WORKS INC.

Firearms; ammunition and projectiles; explosives; fireworks.

DUO-FAST (Serial No. 72223547), Registration No. 804513, is a registered US trademark filed on Jul 16, 1965 by ILLINOIS TOOL WORKS INC.. This trademark covers Class 013 (Firearms, ammunition & explosives).

Section 8/9 declaration window: March 03, 2036

Conflict Analysis

Full conflict analysis for DUO-FAST (SN 72223547) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

DUO-FAST (Reg. #804513) is a registered US trademark that has been protecting its owner, ILLINOIS TOOL WORKS INC., since 1965. The mark covers Class 013 (Firearms, ammunition & explosives). Goods and services include Firearms; ammunition and projectiles; explosives; fireworks..

FILED

Jul 16, 1965

SERIAL

72223547

REG#

804513

REGISTERED

Mar 01, 1966

Filing Information

StatusREGISTERED

Filing DateJul 16, 1965

Serial Number72223547

Registration No.804513

Registration DateMar 01, 1966

Status DateDec 05, 2025

Next RenewalMarch 03, 2036

Filing Basis & Declarations

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

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 013Firearms, ammunition & explosives

US codes: 013

First use anywhere: Apr 15, 1940

First use in commerce: Apr 05, 1940

Firearms; ammunition and projectiles; explosives; fireworks.

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

27 events

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Dec 05, 2025

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Dec 05, 2025

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

REGISTERED AND RENEWED (FOURTH RENEWAL - 10 YRS)

Dec 05, 2025

REGISTERED AND RENEWED (FOURTH RENEWAL - 10 YRS)

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

Dec 05, 2025

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

TEAS SECTION 8 & 9 RECEIVED

Aug 23, 2025

TEAS SECTION 8 & 9 RECEIVED

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

Mar 02, 2025

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

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

May 19, 2021

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

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

May 19, 2021

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

May 19, 2021

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF OWNER ADDRESS RECEIVED

May 19, 2021

TEAS CHANGE OF OWNER ADDRESS RECEIVED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

May 19, 2021

TEAS CHANGE OF CORRESPONDENCE RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

May 19, 2021

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

Jun 10, 2016

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

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

Jun 10, 2016

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

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

Jun 10, 2016

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

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Jun 10, 2016

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

TEAS SECTION 8 & 9 RECEIVED

Mar 24, 2016

TEAS SECTION 8 & 9 RECEIVED

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Jun 27, 2014

TEAS CHANGE OF OWNER ADDRESS RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Jun 27, 2014

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

CASE FILE IN TICRS

Jan 23, 2009

CASE FILE IN TICRS

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

May 10, 2006

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

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

May 10, 2006

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

ASSIGNED TO PARALEGAL

May 10, 2006

ASSIGNED TO PARALEGAL

REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED

Feb 27, 2006

REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED

TEAS SECTION 8 & 9 RECEIVED

Feb 27, 2006

TEAS SECTION 8 & 9 RECEIVED

REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS)

Mar 01, 1986

REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS)

REGISTERED - SEC. 9 FILED/CHECK RECORD FOR SEC. 8

Jan 13, 1986

REGISTERED - SEC. 9 FILED/CHECK RECORD FOR SEC. 8

Other Marks by ILLINOIS TOOL WORKS INC.

Additional USPTO filings from the same owner.

CYC

CYCLONE

88609479

Illinois Tool Works Inc.

REGISTERED

TAP

TAP/R

88609489

Illinois Tool Works Inc.

REGISTERED

BLU

BLUEHILL ELEMENTS

88308268

Illinois Tool Works Inc.

REGISTERED

APP

APPLICHEM

79003600

Illinois Tool Works Inc.

REGISTERED

Other Marks in Class 013 — Firearms, ammunition & explosives

Recently filed and registered marks in the same international class.

DUO

99227446

DUO, s.r.o.

REGISTERED

DUO

88264687

DUO s.r.o.

REGISTERED

DUO

DUO-CHEK

72212558

CRANE CHEMPHARMA & ENERGY CORP.

REGISTERED

BOA

BOA-DUO

72154363

BOA AG

REGISTERED

Other Marks by Andrea S. Fuelleman

Additional USPTO filings handled by the same attorney of record.

ROP

ROPERA

79431108

REGISTERED

HYC

HYCO MONTANHYDRAULIK GROUP

88732070

REGISTERED

RAZ

RAZORFISH HEALTH

88659582

REGISTERED

SAF

SAFIRE

88943333

REGISTERED

DUO-FAST

Run a conflict check

Other Marks by ILLINOIS TOOL WORKS INC.

Other Marks in Class 013 — Firearms, ammunition & explosives

Other Marks by Andrea S. Fuelleman

Get pre-filing clearance

Search 15M+ trademarks

Resources

Company