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Official data from USPTO

DUO-CHEK

Did you know this trademark is already registered in United States?

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Active USPTO registrationType: WordOffice: United States

Quick snapshot

DUO-CHEK

ST13

US500000072212558

Class

6, 13

Filing

72212558

Registration

799726

Risk and opportunity diagnosis

Executive reading for naming, filing, and monitoring decisions.

USPTO status

Active USPTO registration

Case type

Application and registration

Recorded events

33

Latest update

03/10/2026

Trademark type

Word

Nice classes

6, 13

Filing date

02/23/1965

Registration date

12/07/1965

Expiration date

-

Complete case details

Structured fields from the responsible authority and the official record.

Status date

02/19/2026

Last transaction

03/10/2026

Responsible office

United States Patent and Trademark Office

Status code

800

Official register

Principal Register

First use anywhere

10/16/1959

First use in commerce

10/16/1959

Drawing code

1

Owner type

03

Owner location

THE WOODLANDS, TX, US

Current location

PUBLICATION AND ISSUE SECTION

Holders and representatives

Holders

CRANE CHEMPHARMA & ENERGY CORP.
MCC HOLDINGS, INC.
TRW INC.
MISSION VALVE AND PUMP COMPANY

Representatives

Matthew S. Anderson Munck Wilson Mandala, LLP

Technical classification

Nice Classes

Class 6Class 13

Vienna Codes

No Vienna codes available.

Goods and services

Class 6

No specification.

Class 13

VALVES AND PARTS THEREOF

Publications

History of USPTO decisions and trademark events.

33 publications found

NA89

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

02/19/2026

RNL4

REGISTERED AND RENEWED (FOURTH RENEWAL - 10 YRS)

02/19/2026

89AG

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

02/19/2026

APRE

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

02/19/2026

E89R

TEAS SECTION 8 & 9 RECEIVED

11/19/2025

REM2

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

12/07/2024

EWAF

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

12/03/2024

TCCA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

12/03/2024

ARAA

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

12/03/2024

REAP

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

12/03/2024

ASGN

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

03/09/2022

CHAN

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

04/21/2020

TCCA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

04/21/2020

ARAA

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

04/21/2020

REAP

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

04/21/2020

COAR

TEAS CHANGE OF OWNER ADDRESS RECEIVED

04/21/2020

TCCA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

03/20/2017

NA89

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

02/13/2016

RNL3

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

02/13/2016

89AG

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

02/13/2016

APRE

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

02/13/2016

E89R

TEAS SECTION 8 & 9 RECEIVED

12/01/2015

NA89

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - MAILED

08/13/2013

RNL2

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

08/13/2013

89AG

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

08/13/2013

PLGL

ASSIGNED TO PARALEGAL

08/13/2013

REIN

REINSTATED

08/13/2013

CAEX

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

09/09/2006

PLGL

ASSIGNED TO PARALEGAL

11/30/2005

89AF

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

09/12/2005

MAIL

PAPER RECEIVED

09/12/2005

REN1

REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS)

12/07/1985

9.AF

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

12/03/1985

Continuous trademark protection

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