NA89
NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
08/08/2026
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Official data from USPTO
HYDROKOR
Did you know this trademark is already registered in United States?
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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
29
Latest update
08/08/2026
Trademark type
Word
Nice classes
7
Filing date
01/19/1976
Registration date
08/03/1976
Expiration date
-
Complete case details
Structured fields from the responsible authority and the official record.
Status date
08/08/2026
Last transaction
08/08/2026
Responsible office
United States Patent and Trademark Office
Status code
800
Official register
Principal Register
First use anywhere
06/29/1973
First use in commerce
06/29/1973
Drawing code
1
Owner type
03
Owner location
STUTTGART, US
Current location
PUBLICATION AND ISSUE SECTION
Holders and representatives
Holders
TRELLEBORG PIPE SEALS MILFORD, INC.
NPC, INC.
NATIONAL POLLUTION CONTROL SYSTEMS, INC.
Representatives
Jessica S. Sachs Harness, Dickey & Pierce, PLC
Technical classification
Nice Classes
Class 7
Vienna Codes
No Vienna codes available.
Goods and services
Class 7
CORE DRILLING APPARATUS
Publications
History of USPTO decisions and trademark events.
29 publications found
RNL4
REGISTERED AND RENEWED (FOURTH RENEWAL - 10 YRS)
08/08/2026
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
08/08/2026
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
08/08/2026
E89R
TEAS SECTION 8 & 9 RECEIVED
06/11/2026
REM2
COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
08/03/2025
CHAN
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
06/14/2022
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
06/14/2022
EWAF
TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS
06/14/2022
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
06/14/2022
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
06/14/2022
COAR
TEAS CHANGE OF OWNER ADDRESS RECEIVED
06/14/2022
NA89
NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
03/25/2017
RNL3
REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)
03/25/2017
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
03/25/2017
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
03/24/2017
ASGN
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
02/15/2017
E89R
TEAS SECTION 8 & 9 RECEIVED
01/26/2017
CFIT
CASE FILE IN TICRS
11/01/2007
RNL2
REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)
07/22/2006
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
07/22/2006
PLGL
ASSIGNED TO PARALEGAL
07/19/2006
89AF
REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED
04/20/2006
E89R
TEAS SECTION 8 & 9 RECEIVED
04/20/2006
RNL1
REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)
01/29/1997
RRPR
RESPONSE RECEIVED TO POST REG. ACTION
10/31/1996
PRA9
POST REGISTRATION ACTION MAILED - SEC. 9
08/28/1996
9.AF
REGISTERED - SEC. 9 FILED/CHECK RECORD FOR SEC. 8
08/01/1996
C15A
REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
10/27/1981
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