EWAF
TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS
10/09/2025
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Official data from USPTO
CORHART
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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
25
Latest update
10/15/2025
Trademark type
Word
Nice classes
12, 19
Filing date
04/28/1948
Registration date
09/27/1949
Expiration date
-
Complete case details
Structured fields from the responsible authority and the official record.
Status date
10/30/2019
Last transaction
10/15/2025
Responsible office
United States Patent and Trademark Office
Status code
800
Official register
Principal Register
First use anywhere
03/19/1928
First use in commerce
03/19/1928
Drawing code
1
Owner type
03
Owner location
Malvern, PA
Current location
GENERIC WEB UPDATE
Holders and representatives
Holders
Saint-Gobain Ceramics & Plastics, Inc.
C. C. (pessoa física)
CORHART REFRACTORIES COMPANY
Representatives
Sara T. Colburn Cantor Colburn LLP
Technical classification
Nice Classes
Class 12Class 19
Vienna Codes
No Vienna codes available.
Goods and services
Class 12
REFRACTORY BLOCKS FOR FURNACES
Class 19
No specification.
Publications
History of USPTO decisions and trademark events.
25 publications found
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
10/09/2025
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
10/09/2025
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
10/09/2025
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
06/20/2023
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
06/20/2023
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
06/20/2023
CHAN
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
06/20/2023
COAR
TEAS CHANGE OF OWNER ADDRESS RECEIVED
06/20/2023
NA89
NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
10/30/2019
RNL4
REGISTERED AND RENEWED (FOURTH RENEWAL - 10 YRS)
10/30/2019
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
10/30/2019
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
10/29/2019
E89R
TEAS SECTION 8 & 9 RECEIVED
09/26/2019
REM2
COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
09/27/2018
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
05/04/2016
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
05/04/2016
RNL3
REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)
09/30/2009
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
09/30/2009
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
09/29/2009
E89R
TEAS SECTION 8 & 9 RECEIVED
09/24/2009
CFIT
CASE FILE IN TICRS
10/08/2008
REN2
REGISTERED AND RENEWED (SECOND RENEWAL - 20 YRS)
09/27/1989
9.AF
REGISTERED - SEC. 9 FILED/CHECK RECORD FOR SEC. 8
04/24/1989
REN1
REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS)
09/27/1969
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