CLARKSON Trademark
Serial Number: 73727619 • Registration: 1524274
CLARKSON is a trademark filed by
PENTAIR FLOW CONTROL AG
on May 10, 1988. The trademark is classified under Class 9 (Computers & Electronics).
The application is currently registered and active.
Trademark Classes
Owner Contact Info
Legal Representation
Correspondence Address
Li Zhu Quarles & Brady LLP
2020 K Street, NW, Suite 400
Washington, DC 20006-1806
United States
Trademark Details
Filing Date
May 10, 1988
Registration Date
February 14, 1989
Published for Opposition
November 22, 1988
Goods & Services
CONTROL VALVES, NAMELY, KNIFE-GATE VALVES AND PINCH VALVES; AND REAGENT FEEDERS FOR CONTROLLING LIQUID FLOW RATE
Filing History
TEAS CHANGE OF CORRESPONDENCE RECEIVED
Sep 16, 2025 TCCA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
Sep 16, 2025 ARAA
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
Sep 16, 2025 REAP
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
Sep 16, 2025 CHAN
TEAS CHANGE OF OWNER ADDRESS RECEIVED
Sep 16, 2025 COAR
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
Mar 3, 2022 CHAN
TEAS CHANGE OF CORRESPONDENCE RECEIVED
Mar 3, 2022 TCCA
TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS
Mar 3, 2022 EWAF
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
Mar 3, 2022 ARAA
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
Mar 3, 2022 REAP
TEAS CHANGE OF OWNER ADDRESS RECEIVED
Mar 3, 2022 COAR
NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
Aug 23, 2018 NA89
REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)
Aug 23, 2018 RNL2
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
Aug 23, 2018 89AG
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
Aug 23, 2018 APRE
TEAS SECTION 8 & 9 RECEIVED
Aug 14, 2018 E89R
COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
Feb 14, 2018 REM2
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
Oct 4, 2017 ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
Oct 4, 2017 ASCK
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
Sep 6, 2017 ASGN
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
Sep 7, 2016 ASGN
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
Jul 1, 2015 ASGN
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
Sep 28, 2012 ARAA
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
Sep 28, 2012 REAP
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
Apr 27, 2009 ARAA
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
Apr 27, 2009 REAP
REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)
Feb 28, 2009 RNL1
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
Feb 28, 2009 89AG
ASSIGNED TO PARALEGAL
Feb 23, 2009 PLGL
TEAS SECTION 8 & 9 RECEIVED
Feb 20, 2009 E89R
AMENDMENT UNDER SECTION 7 - PROCESSED
Oct 9, 2008 A7OK
CASE FILE IN TICRS
Jul 28, 2008 CFIT
ASSIGNED TO PARALEGAL
Jul 23, 2008 PLGL
TEAS SECTION 7 REQUEST RECEIVED
Jun 18, 2008 ES7R
TEAS CHANGE OF CORRESPONDENCE RECEIVED
Mar 7, 2006 TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
Sep 23, 2005 TCCA
REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
Jan 14, 1995 C15A
REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED
Jul 26, 1994 815F
REGISTERED-PRINCIPAL REGISTER
Feb 14, 1989 R.PR
PUBLISHED FOR OPPOSITION
Nov 22, 1988 PUBO
NOTICE OF PUBLICATION
Oct 22, 1988 NPUB
APPROVED FOR PUB - PRINCIPAL REGISTER
Aug 31, 1988 CNSA
CORRESPONDENCE RECEIVED IN LAW OFFICE
Aug 22, 1988 CRFA
EXAMINERS AMENDMENT MAILED
Aug 22, 1988 CNEA
NON-FINAL ACTION MAILED
Jul 15, 1988 CNRT
ASSIGNED TO EXAMINER
Jul 6, 1988 DOCK
