REM2
COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
10/17/2025
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Official data from USPTO
PX PRESSURE EXCHANGER
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Active USPTO registrationType: WordOffice: United States
Quick snapshot
PX PRESSURE EXCHANGER
ST13
US500000078467363Class
11
Filing
78467363
Registration
3156183
Risk and opportunity diagnosis
Executive reading for naming, filing, and monitoring decisions.
USPTO status
Active USPTO registration
Case type
Application and registration
Recorded events
43
Latest update
10/18/2025
Trademark type
Word
Nice classes
11
Filing date
08/13/2004
Registration date
10/17/2006
Expiration date
-
Complete case details
Structured fields from the responsible authority and the official record.
Status date
12/15/2016
Last transaction
10/18/2025
Responsible office
United States Patent and Trademark Office
Status code
800
Official register
Principal Register
First use anywhere
04/30/2000
First use in commerce
04/30/2000
Drawing code
4
Owner type
03
Owner location
SAN LEANDRO, CA
Examiner
CLARK,ROBERT C
Law office
L10
Current location
GENERIC WEB UPDATE
Holders and representatives
Holders
ENERGY RECOVERY, INC.
ENERGY RECOVERY, INC.
Representatives
Jefferson F. Scher Carr & Ferrell LLP
Technical classification
Nice Classes
Class 11
Vienna Codes
No Vienna codes available.
Goods and services
Class 11
Water treatment and purification equipmentreverse osmosis filtration units for desalinating seawater and freshwater; water strainers and component parts thereforinstruction manuals sold as a unit therewith
Publications
History of USPTO decisions and trademark events.
43 publications found
NA89
NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
12/15/2016
RNL1
REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)
12/15/2016
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
12/15/2016
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
12/15/2016
E89R
TEAS SECTION 8 & 9 RECEIVED
10/06/2016
NA85
NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - MAILED
11/07/2012
C15A
REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
11/07/2012
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
11/07/2012
E815
TEAS SECTION 8 & 15 RECEIVED
10/18/2012
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
12/14/2011
CHAN
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
07/22/2011
COAR
TEAS CHANGE OF OWNER ADDRESS RECEIVED
07/22/2011
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
07/07/2011
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
07/07/2011
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
03/19/2009
R.PR
REGISTERED-PRINCIPAL REGISTER
10/17/2006
PUBO
PUBLISHED FOR OPPOSITION
08/01/2006
NPUB
NOTICE OF PUBLICATION
07/12/2006
PREV
LAW OFFICE PUBLICATION REVIEW COMPLETED
06/16/2006
ALIE
ASSIGNED TO LIE
06/09/2006
CNSA
APPROVED FOR PUB - PRINCIPAL REGISTER
06/01/2006
TEME
TEAS/EMAIL CORRESPONDENCE ENTERED
05/11/2006
CRFA
CORRESPONDENCE RECEIVED IN LAW OFFICE
05/01/2006
TROA
TEAS RESPONSE TO OFFICE ACTION RECEIVED
05/01/2006
GNFR
FINAL REFUSAL E-MAILED
02/09/2006
CNFR
FINAL REFUSAL WRITTEN
02/09/2006
TEME
TEAS/EMAIL CORRESPONDENCE ENTERED
01/13/2006
CRFA
CORRESPONDENCE RECEIVED IN LAW OFFICE
12/28/2005
TROA
TEAS RESPONSE TO OFFICE ACTION RECEIVED
12/28/2005
GNRT
NON-FINAL ACTION E-MAILED
11/18/2005
CNRT
NON-FINAL ACTION WRITTEN
11/18/2005
TEME
TEAS/EMAIL CORRESPONDENCE ENTERED
10/27/2005
CRFA
CORRESPONDENCE RECEIVED IN LAW OFFICE
10/25/2005
TROA
TEAS RESPONSE TO OFFICE ACTION RECEIVED
10/25/2005
PETG
PETITION TO REVIVE-GRANTED
10/25/2005
PROA
TEAS PETITION TO REVIVE RECEIVED
10/25/2005
MAB2
ABANDONMENT NOTICE MAILED - FAILURE TO RESPOND
10/14/2005
ABN2
ABANDONMENT - FAILURE TO RESPOND OR LATE RESPONSE
10/14/2005
GNRT
NON-FINAL ACTION E-MAILED
03/18/2005
CNRT
NON-FINAL ACTION WRITTEN
03/18/2005
DOCK
ASSIGNED TO EXAMINER
03/17/2005
NWAP
NEW APPLICATION ENTERED
08/23/2004
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