EWAF
TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS
02/26/2026
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Official data from USPTO
VISCOBYK
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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
56
Latest update
02/28/2026
Trademark type
Word
Nice classes
1
Filing date
07/31/1992
Registration date
11/01/1994
Expiration date
-
Complete case details
Structured fields from the responsible authority and the official record.
Status date
07/26/2025
Last transaction
02/28/2026
Responsible office
United States Patent and Trademark Office
Status code
800
Official register
Principal Register
First use anywhere
02/01/1993
First use in commerce
02/01/1993
Drawing code
1
Owner type
99
Owner location
Wesel, DE
Examiner
MULLEN, MARK
Current location
PUBLICATION AND ISSUE SECTION
Holders and representatives
Holders
BYK-Chemie GmbH
BYK-Chemie GmbH
Representatives
Farzad A. Panjshiri CANTOR COLBURN LLP
Technical classification
Nice Classes
Class 1
Vienna Codes
No Vienna codes available.
Goods and services
Class 1
chemicals; namelyviscosity depressants for use in the manufacturing and finishing of plastics
Publications
History of USPTO decisions and trademark events.
56 publications found
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
02/26/2026
ECDR
TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS
02/26/2026
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
02/26/2026
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
02/26/2026
NA89
NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
07/26/2025
RNL3
REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)
07/26/2025
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
07/26/2025
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
07/25/2025
E89R
TEAS SECTION 8 & 9 RECEIVED
03/04/2025
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
03/03/2025
ECDR
TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS
03/03/2025
EWOR
TEAS WITHDRAWAL AS DOMESTIC REPRESENTATIVE RECEIVED
03/03/2025
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
03/03/2025
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
03/03/2025
EWAF
TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS
11/01/2024
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
11/01/2024
ECDR
TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS
11/01/2024
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
11/01/2024
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
11/01/2024
CHAN
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
11/01/2024
COAR
TEAS CHANGE OF OWNER ADDRESS RECEIVED
11/01/2024
REM2
COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
11/01/2023
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
05/30/2019
NA89
NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
09/17/2014
RNL2
REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)
09/17/2014
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
09/17/2014
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
09/16/2014
E89R
TEAS SECTION 8 & 9 RECEIVED
08/28/2014
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
04/02/2007
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
04/02/2007
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
04/02/2007
RNL1
REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)
07/05/2005
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
07/05/2005
PLGL
ASSIGNED TO PARALEGAL
07/05/2005
89AF
REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED
05/02/2005
PAPER RECEIVED
05/02/2005
C15A
REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
10/20/2001
PR23
RESPONSE RECEIVED TO POST REG. ACTION - SEC. 8 & 15
07/16/2001
PR23
POST REGISTRATION ACTION MAILED - SEC. 8 & 15
04/11/2001
815F
REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED
12/21/2000
R.PR
REGISTERED-PRINCIPAL REGISTER
11/01/1994
PUBO
PUBLISHED FOR OPPOSITION
08/02/1994
NPUB
NOTICE OF PUBLICATION
07/01/1994
CNSA
APPROVED FOR PUB - PRINCIPAL REGISTER
03/17/1994
IUAA
USE AMENDMENT ACCEPTED
03/17/1994
AUPC
AMENDMENT TO USE PROCESSING COMPLETE
03/17/1994
ZZZX
PREVIOUS ALLOWANCE COUNT WITHDRAWN
03/17/1994
CNSA
APPROVED FOR PUB - PRINCIPAL REGISTER
12/20/1993
IUAF
USE AMENDMENT FILED
11/23/1993
1.BA
Sec. 1(B) CLAIM ADDED
11/23/1993
CRFA
CORRESPONDENCE RECEIVED IN LAW OFFICE
11/12/1993
CNRT
NON-FINAL ACTION MAILED
05/12/1993
CRFA
CORRESPONDENCE RECEIVED IN LAW OFFICE
04/15/1993
CNRT
NON-FINAL ACTION MAILED
10/15/1992
DOCK
ASSIGNED TO EXAMINER
09/26/1992
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