Who owns the DUO trademark?

The DUO trademark is owned by SAPPHIRE SCIENTIFIC, INC..

What is the serial number for DUO?

The USPTO serial number for DUO is 73500661.

What is the registration number for DUO?

DUO is registered under USPTO registration number 1337494.

Sealvo

Home Search: DUODUO #73500661

Back

Updated Sep 16, 2026·25 searches this week

View on USPTO TSDR Find similar marks

DUO

USPTO Trademark Record

ABANDONED

DUO

Q: What class is the DUO trademark registered in?

The DUO trademark is registered in Class 003 (Non-medicated cosmetics, toiletry preparations & cleaning preparations).

SN 73500661·Reg 1337494·Filed Sep 24, 1984

Owner SAPPHIRE SCIENTIFIC, INC.

Non-medicated cosmetics and toiletry preparations; non-medicated dentifrices; perfumes; bleaching preparations and other substances for laundry use; cleaning, polishing and abrasive preparations.

DUO (Serial No. 73500661), Registration No. 1337494, is a abandoned US trademark filed on Sep 24, 1984 by SAPPHIRE SCIENTIFIC, INC.. This trademark covers Class 003 (Non-medicated cosmetics, toiletry preparations & cleaning preparations).

Conflict Analysis

Full conflict analysis for DUO (SN 73500661) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

DUO (Reg. #1337494) is an abandoned US trademark that was filed in 1984 but has since been abandoned. The mark covers Class 003 (Non-medicated cosmetics, toiletry preparations & cleaning preparations). Goods and services include Non-medicated cosmetics and toiletry preparations; non-medicated dentifrices; perfumes; bleaching preparations and other.... The mark faced 1 opposition proceeding during prosecution.

FILED

Sep 24, 1984

SERIAL

73500661

REG#

1337494

REGISTERED

May 28, 1985

Filing Information

StatusABANDONED

Filing DateSep 24, 1984

Serial Number73500661

Registration No.1337494

Registration DateMay 28, 1985

Status DateDec 12, 2025

Published for OppositionMar 19, 1985

Filing Basis & Declarations

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

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 003Non-medicated cosmetics, toiletry preparations & cleaning preparations

US codes: 006, 052

First use anywhere: Apr 18, 1984

First use in commerce: Apr 18, 1984

Non-medicated cosmetics and toiletry preparations; non-medicated dentifrices; perfumes; bleaching preparations and other substances for laundry use; cleaning, polishing and abrasive preparations.

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

28 events

CANCELLED SEC. 8 (10-YR)/EXPIRED SECTION 9

Dec 12, 2025

CANCELLED SEC. 8 (10-YR)/EXPIRED SECTION 9

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

May 28, 2024

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

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

Feb 26, 2019

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Feb 26, 2019

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jan 25, 2018

TEAS CHANGE OF CORRESPONDENCE RECEIVED

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Sep 27, 2017

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

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

Nov 03, 2014

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

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

Nov 03, 2014

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

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

Nov 03, 2014

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

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Nov 01, 2014

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

TEAS SECTION 8 & 9 RECEIVED

Oct 20, 2014

TEAS SECTION 8 & 9 RECEIVED

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Mar 11, 2009

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Sep 19, 2007

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Sep 12, 2007

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

ASSIGNED TO PARALEGAL

Jun 13, 2005

ASSIGNED TO PARALEGAL

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

Jun 13, 2005

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

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

Jun 13, 2005

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

TEAS SECTION 8 & 9 RECEIVED

Apr 26, 2005

TEAS SECTION 8 & 9 RECEIVED

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

Apr 26, 2005

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

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Apr 09, 2003

TEAS CHANGE OF CORRESPONDENCE RECEIVED

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

Sep 20, 1990

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

REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED

Jul 23, 1990

REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED

REGISTERED-PRINCIPAL REGISTER

May 28, 1985

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Mar 19, 1985

PUBLISHED FOR OPPOSITION

NOTICE OF PUBLICATION

Mar 08, 1985

NOTICE OF PUBLICATION

Feb 09, 1985

NOTICE OF PUBLICATION

APPROVED FOR PUB - PRINCIPAL REGISTER

Jan 15, 1985

APPROVED FOR PUB - PRINCIPAL REGISTER

ASSIGNED TO EXAMINER

Jan 11, 1985

ASSIGNED TO EXAMINER

Other Marks by SAPPHIRE SCIENTIFIC, INC.

Additional USPTO filings from the same owner.

CHE

CHEMSPEC

72297033

SAPPHIRE SCIENTIFIC, INC.

REGISTERED

DFC

DFC DETERGENT FREE CLEANING

77411846

SAPPHIRE SCIENTIFIC, INC.

REGISTERED

BIO

BIOSOLV

73116133

SAPPHIRE SCIENTIFIC, INC.

REGISTERED

WOO

WOOD-SOLV

78708730

SAPPHIRE SCIENTIFIC, INC.

REGISTERED

Other Marks in Class 003 — Non-medicated cosmetics, toiletry preparations & cleaning preparations

Recently filed and registered marks in the same international class.

DUO

97408894

Duo Dentaceuticals, LLC

REGISTERED

DUO

88812716

Premier Anti-Aging Co., Ltd.

REGISTERED

DUO

77039855

ARDELL INTERNATIONAL, INC.

REGISTERED

DUO

98689626

Culinary Cannabis Company LLC

ABANDONED

Other Marks by Raymond Rundelli

Additional USPTO filings handled by the same attorney of record.

97382761

REGISTERED

LOG

LogoMark

74560389

REGISTERED

AVO

AVON

78203046

REGISTERED

REV

REV 1

86550037

REGISTERED

DUO

Run a conflict check

Other Marks by SAPPHIRE SCIENTIFIC, INC.

Other Marks in Class 003 — Non-medicated cosmetics, toiletry preparations & cleaning preparations

Other Marks by Raymond Rundelli

Get pre-filing clearance

Search 15M+ trademarks

Resources

Company