Who owns the DUO-CHEK trademark?

The DUO-CHEK trademark is owned by CRANE CHEMPHARMA & ENERGY CORP..

What class is the DUO-CHEK trademark registered in?

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

What is the serial number for DUO-CHEK?

The USPTO serial number for DUO-CHEK is 72212558.

What is the registration number for DUO-CHEK?

DUO-CHEK is registered under USPTO registration number 799726.

Sealvo

Home Search: DUO-CHEKDUO-CHEK #72212558

Back

Updated Nov 8, 2026·24 searches this week

View on USPTO TSDR Find similar marks

Section 8/9 declaration window

December 07, 2035

3316 days remaining

DUO

DUO-CHEK

REGISTERED

Serial: 72212558
Reg: 799726
Filed
Owner: CRANE CHEMPHARMA & ENERGY CORP.

Firearms; ammunition and projectiles; explosives; fireworks.

What to file next

Section 9 renewal, filed with a Section 8 declaration

When: Due between the ninth and tenth anniversary of registration, then before each tenth anniversary after that.
Extensions and grace: A six-month grace period follows, with an added per-class fee.
If it is missed: A missed renewal cancels the registration, and there is no revival route for it.

How Section 9 renewal works

General information about USPTO practice, not legal advice. The register is the authority, and a filing that has not yet posted can change what is owed.

Full Goods & Services

Class 013Firearms, ammunition & explosives

US codes: 013

First use anywhere: Oct 16, 1959

First use in commerce: Oct 16, 1959

Firearms; ammunition and projectiles; explosives; fireworks.

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

Status History

33 events

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Feb 19, 2026

Code APRE

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

Feb 19, 2026

Code 89AG

REGISTERED AND RENEWED (FOURTH RENEWAL - 10 YRS)

Feb 19, 2026

Code RNL4

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

Feb 19, 2026

Code NA89

TEAS SECTION 8 & 9 RECEIVED

Nov 19, 2025

Code E89R

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

Dec 07, 2024

Code REM2

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Dec 03, 2024

Code ARAA

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

Dec 03, 2024

Code REAP

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Dec 03, 2024

Code TCCA

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Dec 03, 2024

Code EWAF

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Mar 09, 2022

Code ASGN

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Apr 21, 2020

Code COAR

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

Apr 21, 2020

Code REAP

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Apr 21, 2020

Code ARAA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Apr 21, 2020

Code TCCA

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Apr 21, 2020

Code CHAN

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Mar 20, 2017

Code TCCA

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Feb 13, 2016

Code APRE

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

Feb 13, 2016

Code 89AG

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

Feb 13, 2016

Code RNL3

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

Feb 13, 2016

Code NA89

TEAS SECTION 8 & 9 RECEIVED

Dec 01, 2015

Code E89R

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

Aug 13, 2013

Code 89AG

ASSIGNED TO PARALEGAL

Aug 13, 2013

Code PLGL

REINSTATED

Aug 13, 2013

Code REIN

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

Aug 13, 2013

Code RNL2

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - MAILED

Aug 13, 2013

Code NA89

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

Sep 09, 2006

Code CAEX

ASSIGNED TO PARALEGAL

Nov 30, 2005

Code PLGL

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

Sep 12, 2005

Code 89AF

PAPER RECEIVED

Sep 12, 2005

Code MAIL

REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS)

Dec 07, 1985

Code REN1

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

Dec 03, 1985

Code 9.AF

DUO-CHEK

What to file next

Full Goods & Services

Filing Basis & Declarations

Other Marks in Class 013 — Firearms, ammunition & explosives

Other Marks by Matthew S. Anderson

Get pre-filing clearance

Search 14M+ trademarks

Run a conflict check

Industries

USPTO Deadlines

Compare

Resources

Company