ASGN
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
05/13/2026
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Official data from USPTO
EKO3 SYSTEMS
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Active USPTO registrationType: CombinedOffice: United States
Risk and opportunity diagnosis
Executive reading for naming, filing, and monitoring decisions.
USPTO status
Active USPTO registration
Case type
Application and registration
Recorded events
34
Latest update
05/14/2026
Trademark type
Combined
Nice classes
11
Filing date
04/07/2006
Registration date
10/23/2007
Expiration date
-
Complete case details
Structured fields from the responsible authority and the official record.
Status date
07/20/2017
Last transaction
05/14/2026
Responsible office
United States Patent and Trademark Office
Status code
800
Official register
Principal Register
First use anywhere
06/02/1995
First use in commerce
06/02/1995
Drawing code
5
Owner type
16
Owner location
SANTA ANA, CA, US
Examiner
CLAYTON, CHERYL A
Law office
N60
Current location
TMO LAW OFFICE 124
Holders and representatives
Holders
KNORR SYSTEMS INT'L, LLC
Knorr Systems, Inc.
Representatives
Ronald H. Spuhler MCANDREWS HELD & MALLOY
Technical classification
Nice Classes
Class 11
Vienna Codes
No Vienna codes available.
Goods and services
Class 11
High rate sand filtration systems for use on public swimming poolsfountainswater features systems
Publications
History of USPTO decisions and trademark events.
34 publications found
CHAN
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
12/18/2020
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
12/18/2020
ECDR
TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS
12/18/2020
EWAF
TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS
12/18/2020
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
12/18/2020
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
12/18/2020
COAR
TEAS CHANGE OF OWNER ADDRESS RECEIVED
12/18/2020
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
01/24/2018
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
12/20/2017
NA89
NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
07/20/2017
RNL1
REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)
07/20/2017
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
07/20/2017
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
07/20/2017
E89R
TEAS SECTION 8 & 9 RECEIVED
06/13/2017
REM2
COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
10/23/2016
NAS8
NOTICE OF ACCEPTANCE OF SEC. 8 - E-MAILED
12/07/2012
8.OK
REGISTERED - SEC. 8 (6-YR) ACCEPTED
12/07/2012
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
12/06/2012
ES8R
TEAS SECTION 8 RECEIVED
11/02/2012
R.PR
REGISTERED-PRINCIPAL REGISTER
10/23/2007
PUBO
PUBLISHED FOR OPPOSITION
08/07/2007
NPUB
NOTICE OF PUBLICATION
07/18/2007
PREV
LAW OFFICE PUBLICATION REVIEW COMPLETED
05/12/2007
ALIE
ASSIGNED TO LIE
05/12/2007
CNSA
APPROVED FOR PUB - PRINCIPAL REGISTER
04/25/2007
TEME
TEAS/EMAIL CORRESPONDENCE ENTERED
03/17/2007
CRFA
CORRESPONDENCE RECEIVED IN LAW OFFICE
03/16/2007
TROA
TEAS RESPONSE TO OFFICE ACTION RECEIVED
03/16/2007
GNRT
NON-FINAL ACTION E-MAILED
09/26/2006
CNRT
NON-FINAL ACTION WRITTEN
09/26/2006
DOCK
ASSIGNED TO EXAMINER
09/18/2006
MPMK
NOTICE OF PSEUDO MARK MAILED
04/13/2006
NWAP
NEW APPLICATION ENTERED
04/12/2006
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