ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
05/04/2026
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Official data from USPTO
PRAESTOL
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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
37
Latest update
05/05/2026
Trademark type
Word
Nice classes
1
Filing date
05/10/1979
Registration date
04/20/1982
Expiration date
-
Complete case details
Structured fields from the responsible authority and the official record.
Status date
08/02/2022
Last transaction
05/05/2026
Responsible office
United States Patent and Trademark Office
Status code
800
Official register
Principal Register
First use anywhere
1956-00-00
First use in commerce
1977-00-00
Drawing code
1
Owner type
16
Owner location
SCHAFFHAUSEN, US
Current location
GENERIC WEB UPDATE
Holders and representatives
Holders
S. L. (pessoa física)
ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC
STOCKHAUSEN GMBH
STOCKHAUSEN GMBH & CO. KG
Chemische Fabrik Stockhausen & Cie
Representatives
Deborah Henscheid Lorenz & Kopf LLP
Technical classification
Nice Classes
Class 1
Vienna Codes
No Vienna codes available.
Goods and services
Class 1
Chemical Products for Use in the Separation of Solids from Aqueous SystemsSuch as SuspensionsSlurries and SludgesContaining Solid Materials Suspended Therein-NamelyFlocculationSedimentationDehydration and Retention Agents
Publications
History of USPTO decisions and trademark events.
37 publications found
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
12/05/2025
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
07/04/2024
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
07/19/2023
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
11/16/2022
NA89
NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
08/02/2022
RNL3
REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)
08/02/2022
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
08/02/2022
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
08/02/2022
E89R
TEAS SECTION 8 & 9 RECEIVED
02/16/2022
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
12/08/2021
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
11/24/2021
REM2
COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
04/20/2021
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
09/05/2018
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
08/22/2018
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
07/25/2018
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
08/27/2014
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
08/13/2014
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
03/27/2013
NA89
NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
02/22/2012
RNL2
REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)
02/22/2012
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
02/22/2012
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
02/22/2012
E89R
TEAS SECTION 8 & 9 RECEIVED
01/05/2012
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
01/05/2012
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
01/05/2012
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
09/21/2011
CFIT
CASE FILE IN TICRS
03/24/2008
ASGN
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
07/12/2006
RNL1
REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)
03/15/2002
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
03/15/2002
89AF
REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED
01/11/2002
C15A
REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
03/20/1989
RRPR
RESPONSE RECEIVED TO POST REG. ACTION
03/13/1989
PR23
POST REGISTRATION ACTION MAILED - SEC. 8 & 15
09/16/1988
815F
REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED
04/18/1988
R.PR
REGISTERED-PRINCIPAL REGISTER
04/20/1982
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