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Official data from USPTO

WLC

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

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Active USPTO registrationType: WordOffice: United States

Quick snapshot

WLC

ST13

US500000073486524

Class

9

Filing

73486524

Registration

1335245

Risk and opportunity diagnosis

Executive reading for naming, filing, and monitoring decisions.

USPTO status

Active USPTO registration

Case type

Application and registration

Recorded events

40

Latest update

09/13/2025

Trademark type

Word

Nice classes

9

Filing date

06/22/1984

Registration date

05/14/1985

Expiration date

-

Complete case details

Structured fields from the responsible authority and the official record.

Status date

09/12/2025

Last transaction

09/13/2025

Responsible office

United States Patent and Trademark Office

Status code

800

Official register

Principal Register

First use anywhere

04/30/1982

First use in commerce

04/30/1982

Drawing code

1

Owner type

03

Owner location

EXTON, PA

Current location

PUBLICATION AND ISSUE SECTION

Holders and representatives

Holders

DFT INC.
Durabla Manufacturing Company

Representatives

Randy M. Friedberg Stradley Ronon Stevens & Young, LLP

Technical classification

Nice Classes

Class 9

Vienna Codes

No Vienna codes available.

Goods and services

Class 9

Automatic Check Valves

Publications

History of USPTO decisions and trademark events.

40 publications found

NA89

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

09/12/2025

RNL3

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

09/12/2025

89AG

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

09/12/2025

APRE

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

09/12/2025

E89R

TEAS SECTION 8 & 9 RECEIVED

05/14/2025

EWAF

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

05/13/2025

TCCA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

05/13/2025

ARAA

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

05/13/2025

REAP

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

05/13/2025

CHAN

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

05/13/2025

COAR

TEAS CHANGE OF OWNER ADDRESS RECEIVED

05/13/2025

REM2

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

05/14/2024

ARAA

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

06/21/2019

REAP

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

06/21/2019

ARAA

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

04/17/2019

REAP

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

04/17/2019

TCCA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

04/15/2019

TCCA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

01/04/2017

CORV

REVIEW OF CORRESPONDENCE COMPLETE - POWER OF ATTORNEY ENTERED

10/16/2015

TCCA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

09/17/2015

EWAF

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

09/15/2015

NA89

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

09/03/2014

RNL2

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

09/03/2014

89AG

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

09/03/2014

APRE

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

09/03/2014

E89R

TEAS SECTION 8 & 9 RECEIVED

08/18/2014

RNL1

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

04/20/2005

89AG

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

04/20/2005

PLGL

ASSIGNED TO PARALEGAL

04/20/2005

89AF

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

03/02/2005

MAIL

PAPER RECEIVED

03/02/2005

C15A

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

05/30/1991

815F

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

01/28/1991

R.PR

REGISTERED-PRINCIPAL REGISTER

05/14/1985

PUBO

PUBLISHED FOR OPPOSITION

03/05/1985

NPUB

NOTICE OF PUBLICATION

02/21/1985

NPUB

NOTICE OF PUBLICATION

01/24/1985

CNSA

APPROVED FOR PUB - PRINCIPAL REGISTER

01/08/1985

CNEA

EXAMINER'S AMENDMENT MAILED

01/04/1985

DOCK

ASSIGNED TO EXAMINER

12/08/1984

Continuous trademark protection

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