USPTO serial 75069424
ISOTECH
Reviewed by CopyMark Law Group
- Filing date
- Status date
- Registration date
- Feb 4, 1997
- Examiner
- AXILBUND, MELVIN
- Law office
- GENERIC WEB UPDATE
What this means
This registration is in, or will soon enter, a USPTO maintenance window. Missing a Section 8 or Section 9 filing can cancel the registration.
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Owner
Champaign, IL, US
STRATUM RESERVOIR (ISOTECH), LLC
Houston, TX, US
Champaign, IL, US
Champaign, IL, US
Attorney of record
The USPTO lists this attorney as the applicant's representative for correspondence on this application.
Carla B. Oakley
Carla B. Oakley Morgan, Lewis & Bockius LLP600 Montgomery Street, Suite 2300San Francisco, CA 94111United StatesGoods and services
| Class | Description | Status | First use |
|---|---|---|---|
| 042 | geochemical analysis of natural gas | ACTIVE | Nov 18, 1985 |
Related trademarks
CopyMark links this record to cited §2(d) serials, the owner's other marks, Nice classes, similar mark names, and recently changed USPTO applications.
- Other trademarks owned by Isotech Laboratories, Inc.
- Other trademarks owned by STRATUM RESERVOIR (ISOTECH), LLC
- Other trademarks owned by Isotech Laboratories, Inc.
- Other trademarks owned by Isotech Laboratories, Inc.
- Other trademarks in Class 042
- Similar marks named ISOTECH
- Recently changed USPTO trademarks
- Recently filed trademarks
- Browse all trademark records
Prosecution history
| Date | Code | Event | What it means |
|---|---|---|---|
| Apr 7, 2026 | TCCA | TEAS CHANGE OF CORRESPONDENCE RECEIVED | — |
| Apr 7, 2026 | ARAA | ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED | This event means the applicant filed a response to a USPTO Office Action — typically arguments, amendments, or evidence addressing the examiner's objections. The USPTO will review the response and either allow the mark to proceed or issue another action. |
| Apr 7, 2026 | REAP | TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED | — |
| Feb 4, 2026 | REM2 | COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED | — |
| Aug 26, 2025 | TCCA | TEAS CHANGE OF CORRESPONDENCE RECEIVED | — |
| Aug 26, 2025 | ARAA | ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED | This event means the applicant filed a response to a USPTO Office Action — typically arguments, amendments, or evidence addressing the examiner's objections. The USPTO will review the response and either allow the mark to proceed or issue another action. |
| Aug 26, 2025 | REAP | TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED | — |
| Aug 26, 2025 | CHAN | APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED | — |
| Aug 26, 2025 | COAR | TEAS CHANGE OF OWNER ADDRESS RECEIVED | — |
| Jun 8, 2022 | ASCK | ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY | — |
| Mar 26, 2020 | CHAN | APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED | — |
| Mar 26, 2020 | TCCA | TEAS CHANGE OF CORRESPONDENCE RECEIVED | — |
| Mar 26, 2020 | ARAA | ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED | This event means the applicant filed a response to a USPTO Office Action — typically arguments, amendments, or evidence addressing the examiner's objections. The USPTO will review the response and either allow the mark to proceed or issue another action. |
| Mar 26, 2020 | REAP | TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED | — |
| Mar 26, 2020 | COAR | TEAS CHANGE OF OWNER ADDRESS RECEIVED | — |
| May 29, 2019 | ASCK | ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY | — |
| May 8, 2019 | ASGN | AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP | — |
| Aug 11, 2016 | NA89 | NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED | — |
| Aug 11, 2016 | RNL2 | REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS) | The trademark registration was renewed for another 10-year term after acceptable maintenance filings. RNL1, RNL2, and RNL3 indicate which renewal cycle (first, second, or third 10-year term) was recorded. The registration remains active. |
| Aug 11, 2016 | 89AG | REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED | The USPTO accepted your combined Section 8 declaration and Section 9 renewal application. The registration is renewed for another 10-year term. The next combined maintenance filing will be due at the following 10-year anniversary. |
| Aug 11, 2016 | APRE | CASE ASSIGNED TO POST REGISTRATION PARALEGAL | — |
| May 20, 2016 | TCCA | TEAS CHANGE OF CORRESPONDENCE RECEIVED | — |
| May 20, 2016 | E89R | TEAS SECTION 8 & 9 RECEIVED | — |
| Feb 4, 2016 | REM2 | COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED | — |
| Mar 12, 2013 | ARAA | ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED | This event means the applicant filed a response to a USPTO Office Action — typically arguments, amendments, or evidence addressing the examiner's objections. The USPTO will review the response and either allow the mark to proceed or issue another action. |
| Mar 12, 2013 | REAP | TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED | — |
| Jun 1, 2009 | TCCA | TEAS CHANGE OF CORRESPONDENCE RECEIVED | — |
| Dec 3, 2008 | MDSC | NOTICE OF DESIGN SEARCH CODE MAILED | — |
| Oct 29, 2008 | MDSC | NOTICE OF DESIGN SEARCH CODE MAILED | — |
| Dec 28, 2006 | CFIT | CASE FILE IN TICRS | — |
| Nov 2, 2006 | RNL1 | REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS) | The trademark registration was renewed for another 10-year term after acceptable maintenance filings. RNL1, RNL2, and RNL3 indicate which renewal cycle (first, second, or third 10-year term) was recorded. The registration remains active. |
| Nov 2, 2006 | 89AG | REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED | The USPTO accepted your combined Section 8 declaration and Section 9 renewal application. The registration is renewed for another 10-year term. The next combined maintenance filing will be due at the following 10-year anniversary. |
| Oct 24, 2006 | PLGL | ASSIGNED TO PARALEGAL | — |
| Aug 21, 2006 | 89AF | REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED | — |
| Aug 21, 2006 | E89R | TEAS SECTION 8 & 9 RECEIVED | — |
| Jan 6, 2003 | C15A | REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK. | — |
| Oct 28, 2002 | 815F | REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED | — |
| Oct 28, 2002 | PAPER RECEIVED | — | |
| Feb 4, 1997 | R.PR | REGISTERED-PRINCIPAL REGISTER | Your trademark is registered on the Principal Register — the strongest form of federal trademark protection. You may use the ® symbol for the covered goods and services. Maintenance filings (Section 8 and renewals) are required to keep the registration alive. |
| Nov 12, 1996 | PUBO | PUBLISHED FOR OPPOSITION | Your mark was published in the USPTO Official Gazette for a 30-day opposition window. During that period, third parties who believe they would be harmed can file an opposition. If no opposition is filed, prosecution usually continues toward registration or a Notice of Allowance. |
| Oct 11, 1996 | NPUB | NOTICE OF PUBLICATION | — |
| Sep 5, 1996 | CNSA | APPROVED FOR PUB - PRINCIPAL REGISTER | — |
| Aug 30, 1996 | DOCK | ASSIGNED TO EXAMINER | — |