ASGN
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
04/22/2026
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Official data from USPTO
PROTOZYME
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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
32
Latest update
04/23/2026
Trademark type
Word
Nice classes
1
Filing date
04/14/1980
Registration date
02/02/1982
Expiration date
-
Complete case details
Structured fields from the responsible authority and the official record.
Status date
01/14/2022
Last transaction
04/23/2026
Responsible office
United States Patent and Trademark Office
Status code
800
Official register
Principal Register
First use anywhere
02/16/1979
First use in commerce
02/16/1979
Drawing code
1
Owner type
16
Owner location
CALEDONIA, MI, US
Examiner
MANDIR, FREDERICK
Law office
570
Current location
GENERIC WEB UPDATE
Holders and representatives
Holders
RUHOF, LLC
RUHOF CORPORATION, THE
Hoffman; Marvin
RUHOF CORPORATION, THE
Representatives
Kristen S. Ruisi VENABLE LLP
Technical classification
Nice Classes
Class 1
Vienna Codes
No Vienna codes available.
Goods and services
Class 1
Chemical Solution for Laboratory Use for the Removal of Proteinaceous Soils from Objects
Publications
History of USPTO decisions and trademark events.
32 publications found
CHAN
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
05/03/2023
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
05/03/2023
EWAF
TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS
05/03/2023
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
05/03/2023
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
05/03/2023
COAR
TEAS CHANGE OF OWNER ADDRESS RECEIVED
05/03/2023
NA89
NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
01/14/2022
RNL3
REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)
01/14/2022
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
01/14/2022
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
01/14/2022
E89R
TEAS SECTION 8 & 9 RECEIVED
08/06/2021
REM2
COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
02/02/2021
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
08/29/2019
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
08/29/2019
RNL2
REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)
03/29/2011
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
03/29/2011
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
03/29/2011
E89R
TEAS SECTION 8 & 9 RECEIVED
03/25/2011
CFIT
CASE FILE IN TICRS
03/25/2008
RNL1
REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)
11/17/2001
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
11/17/2001
89AF
REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED
09/12/2001
C15A
REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
07/27/1987
815F
REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED
02/17/1987
R.PR
REGISTERED-PRINCIPAL REGISTER
02/02/1982
PUBO
PUBLISHED FOR OPPOSITION
11/10/1981
NPUB
NOTICE OF PUBLICATION
09/29/1981
CNSA
APPROVED FOR PUB - PRINCIPAL REGISTER
09/18/1981
CNRT
NON-FINAL ACTION MAILED
07/28/1981
DOCK
ASSIGNED TO EXAMINER
04/13/1981
DOCK
ASSIGNED TO EXAMINER
10/06/1980
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