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Official data from USPTO

DURATHERM

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

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Active USPTO registrationType: WordOffice: United States

Quick snapshot

DURATHERM

ST13

US500000074466346

Class

11

Filing

74466346

Registration

1930599

Risk and opportunity diagnosis

Executive reading for naming, filing, and monitoring decisions.

USPTO status

Active USPTO registration

Case type

Application and registration

Recorded events

30

Latest update

01/20/2026

Trademark type

Word

Nice classes

11

Filing date

12/03/1993

Registration date

10/31/1995

Expiration date

-

Complete case details

Structured fields from the responsible authority and the official record.

Status date

12/31/2025

Last transaction

01/20/2026

Responsible office

United States Patent and Trademark Office

Status code

800

Official register

Principal Register

First use anywhere

1993-10-00

First use in commerce

1993-10-00

Drawing code

1

Owner type

03

Owner location

MINNETONKA, MN

Examiner

RICARDO, RANDY

Current location

PUBLICATION AND ISSUE SECTION

Holders and representatives

Holders

BL TECHNOLOGIES, INC.
SUEZ WTS SOLUTIONS USA, INC.
GE OSMONICS, INC.
Desalination Systems, Inc.
Desalination Systems, Inc.

Representatives

Dyan M. House Baker & McKenzie, LLP

Technical classification

Nice Classes

Class 11

Vienna Codes

No Vienna codes available.

Goods and services

Class 11

spirally wound membrane elements or cartridges for concentrating products and/or removing impurities in fluid treatment systems for high temperature feed application

Publications

History of USPTO decisions and trademark events.

30 publications found

NA89

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

12/31/2025

RNL3

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

12/31/2025

89AG

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

12/31/2025

APRE

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

12/31/2025

E89R

TEAS SECTION 8 & 9 RECEIVED

09/23/2025

REM2

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

10/31/2024

ASGN

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

05/10/2023

ARAA

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

07/06/2018

REAP

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

07/06/2018

ASGN

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

05/16/2018

NA89

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

10/16/2015

RNL2

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

10/16/2015

89AG

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

10/16/2015

APRE

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

10/14/2015

E89R

TEAS SECTION 8 & 9 RECEIVED

09/10/2015

CFIT

CASE FILE IN TICRS

06/13/2007

RNL1

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

07/20/2006

89AG

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

07/20/2006

PLGL

ASSIGNED TO PARALEGAL

07/13/2006

ASGN

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

04/26/2006

89AF

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

04/21/2006

E89R

TEAS SECTION 8 & 9 RECEIVED

04/21/2006

C15A

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

07/13/2001

815F

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

05/04/2001

R.PR

REGISTERED-PRINCIPAL REGISTER

10/31/1995

PUBO

PUBLISHED FOR OPPOSITION

01/24/1995

NPUB

NOTICE OF PUBLICATION

12/23/1994

CNSA

APPROVED FOR PUB - PRINCIPAL REGISTER

09/27/1994

CNRT

NON-FINAL ACTION MAILED

06/28/1994

DOCK

ASSIGNED TO EXAMINER

06/08/1994

Continuous trademark protection

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