TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
04/20/2026
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Official data from USPTO
ENERSUL
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Active USPTO registrationType: WordOffice: 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
46
Latest update
04/22/2026
Trademark type
Word
Nice classes
40
Filing date
02/23/1999
Registration date
08/08/2000
Expiration date
-
Complete case details
Structured fields from the responsible authority and the official record.
Status date
05/15/2021
Last transaction
04/22/2026
Responsible office
United States Patent and Trademark Office
Status code
800
Official register
Principal Register
First use anywhere
05/01/1998
First use in commerce
05/01/1998
Drawing code
1
Owner type
13
Owner location
CALGARY, ALBERTA, CA
Examiner
FINE, STEVEN
Law office
L70
Current location
GENERIC WEB UPDATE
Holders and representatives
Holders
ENERSUL LIMITED PARTNERSHIP
Enersul Holdings Inc.
Representatives
Michael Harris ARNOLD & PORTER KAYE SCHOLER LLP
Technical classification
Nice Classes
Class 40
Vienna Codes
No Vienna codes available.
Goods and services
Class 40
Processing of liquid sulphur for others
Publications
History of USPTO decisions and trademark events.
46 publications found
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
04/20/2026
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
04/20/2026
CHAN
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
04/20/2026
COAR
TEAS CHANGE OF OWNER ADDRESS RECEIVED
04/20/2026
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
03/17/2025
CHAN
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
03/17/2025
COAR
TEAS CHANGE OF OWNER ADDRESS RECEIVED
03/17/2025
EWAF
TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS
12/16/2024
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
12/16/2024
ECDR
TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS
12/16/2024
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
12/16/2024
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
12/16/2024
NA89
NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
05/15/2021
RNL2
REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)
05/15/2021
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
05/15/2021
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
05/15/2021
E89R
TEAS SECTION 8 & 9 RECEIVED
02/05/2021
CHAN
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
09/15/2020
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
09/15/2020
ECDR
TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS
09/15/2020
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
09/15/2020
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
09/15/2020
COAR
TEAS CHANGE OF OWNER ADDRESS RECEIVED
09/15/2020
REM2
COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
08/08/2019
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
11/20/2018
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
04/24/2018
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
04/24/2018
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
02/17/2016
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
02/17/2016
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
05/05/2014
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
05/01/2014
RNL1
REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)
11/18/2009
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
11/18/2009
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
11/13/2009
E89R
TEAS SECTION 8 & 9 RECEIVED
11/03/2009
CFIT
CASE FILE IN TICRS
10/23/2007
C15A
REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
03/03/2006
815F
REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED
12/08/2005
E815
TEAS SECTION 8 & 15 RECEIVED
12/08/2005
R.PR
REGISTERED-PRINCIPAL REGISTER
08/08/2000
PUBO
PUBLISHED FOR OPPOSITION
05/16/2000
NPUB
NOTICE OF PUBLICATION
04/14/2000
CNSA
APPROVED FOR PUB - PRINCIPAL REGISTER
02/04/2000
CRFA
CORRESPONDENCE RECEIVED IN LAW OFFICE
12/22/1999
CNRT
NON-FINAL ACTION MAILED
06/25/1999
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