ASGN
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
04/15/2026
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Official data from USPTO
DURADIAMOND
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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
31
Latest update
04/16/2026
Trademark type
Word
Nice classes
7
Filing date
07/03/1997
Registration date
09/15/1998
Expiration date
-
Complete case details
Structured fields from the responsible authority and the official record.
Status date
03/16/2019
Last transaction
04/16/2026
Responsible office
United States Patent and Trademark Office
Status code
800
Official register
Principal Register
First use anywhere
03/21/1997
First use in commerce
03/21/1997
Drawing code
1
Owner type
03
Owner location
HOUSTON, TX, US
Examiner
YARD, JOHN S
Law office
L40
Current location
GENERIC WEB UPDATE
Holders and representatives
Holders
GRANT PRIDECO, INC.
GP USA HOLDING, LLC
REEDHYCALOG, L.P.
Camco International Inc.
Representatives
Gregory L. Maag Conley Rose, P.C.
Technical classification
Nice Classes
Class 7
Vienna Codes
No Vienna codes available.
Goods and services
Class 7
downhole drilling toolsdrill bits and core bits
Publications
History of USPTO decisions and trademark events.
31 publications found
ASGN
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
08/28/2019
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
03/29/2019
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
03/29/2019
NA89
NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
03/16/2019
RNL2
REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)
03/16/2019
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
03/16/2019
E89R
TEAS SECTION 8 & 9 RECEIVED
03/15/2019
REM2
COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
09/15/2017
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
08/04/2011
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
08/04/2011
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
07/30/2009
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
07/30/2009
RNL1
REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)
12/30/2008
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
12/30/2008
PLGL
ASSIGNED TO PARALEGAL
11/25/2008
E89R
TEAS SECTION 8 & 9 RECEIVED
11/20/2008
CFIT
CASE FILE IN TICRS
08/09/2007
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
11/08/2006
ASCK
ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY
09/20/2006
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
01/13/2006
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
01/13/2006
C15A
REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
10/28/2004
815F
REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED
09/09/2004
E815
TEAS SECTION 8 & 15 RECEIVED
09/09/2004
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
09/12/2003
R.PR
REGISTERED-PRINCIPAL REGISTER
09/15/1998
PUBO
PUBLISHED FOR OPPOSITION
06/23/1998
NPUB
NOTICE OF PUBLICATION
05/22/1998
CNSA
APPROVED FOR PUB - PRINCIPAL REGISTER
03/23/1998
DOCK
ASSIGNED TO EXAMINER
03/19/1998
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