USPTO serial 87750270
TENAX
Reviewed by CopyMark Law Group
- Filing date
- Status date
- Registration date
- Mar 26, 2019
- Examiner
- BRADLEY, EVELYN
- Law office
- PUBLICATION AND ISSUE SECTION
What this means
Status 705 means a Madrid-based U.S. registration has accepted Section 71 maintenance and Section 15 incontestability. The U.S. extension is active with strengthened rights. Track next renewal deadlines in TSDR and WIPO records.
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Current trademark owner
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Owner
Clinton, OK
Clinton, OK
Clinton, OK
CLINTON, OK
Attorney of record
The USPTO lists this attorney as the applicant's representative for correspondence on this application.
Ross N. Chaffin, Esquire
Ross N. Chaffin, Esquire TOMLINSON MCKINSTRY, P.C.TWO LEADERSHIP SQUARE, 211 N. ROBINSONSUITE 450OKLAHOMA CITY, OK 73102Goods and services
| Class | Description | Status | First use |
|---|---|---|---|
| 037 | Technical advice in the field of oil and gas well drilling and hydraulic fracturing; rental of oil and gas well drilling tools and downhole tools used in oil and gas drilling and hydraulic fracturing | ACTIVE | Oct 1, 2013 |
| 042 | [ Research and development of new products in the field of energy, specifically relating to oil and gas extraction and well drilling ] | SECTION 8 - CANCELLED | Oct 1, 2013 |
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 Tenax Energy Solutions, LLC
- Other trademarks owned by Tenax Energy Solutions, LLC
- Other trademarks owned by Tenax Energy Solutions, LLC
- Other trademarks owned by TENAX ENERGY SYSTEMS, LLC
- Other trademarks in Class 037
- Other trademarks in Class 042
- Similar marks named TENAX
- Recently changed USPTO trademarks
- Recently filed trademarks
- Browse all trademark records
Prosecution history
| Date | Code | Event | What it means |
|---|---|---|---|
| Oct 8, 2025 | ASGN | AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP | — |
| Jul 30, 2025 | NA85 | NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED | — |
| Jul 30, 2025 | C15P | REGISTERED - PARTIAL SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK. | — |
| Jul 30, 2025 | APRE | CASE ASSIGNED TO POST REGISTRATION PARALEGAL | — |
| Mar 26, 2025 | E815 | TEAS SECTION 8 & 15 RECEIVED | — |
| Mar 26, 2024 | REM1 | COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED | — |
| Mar 26, 2019 | 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. |
| Jan 8, 2019 | NPUB | OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED | — |
| Jan 8, 2019 | 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. |
| Dec 19, 2018 | NONP | NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED | — |
| Dec 3, 2018 | CNSA | APPROVED FOR PUB - PRINCIPAL REGISTER | — |
| Nov 30, 2018 | TEME | TEAS/EMAIL CORRESPONDENCE ENTERED | — |
| Nov 30, 2018 | CRFA | CORRESPONDENCE RECEIVED IN LAW OFFICE | — |
| Nov 30, 2018 | ERFR | TEAS REQUEST FOR RECONSIDERATION RECEIVED | — |
| Nov 27, 2018 | GNFN | NOTIFICATION OF FINAL REFUSAL EMAILED | — |
| Nov 27, 2018 | GNFR | FINAL REFUSAL E-MAILED | A final Office Action (final refusal) means the examining attorney is maintaining at least one refusal and your options are narrower. You can file a response addressing the refusal, appeal to the Trademark Trial and Appeal Board, or let the application abandon. |
| Nov 27, 2018 | CNFR | FINAL REFUSAL WRITTEN | A final Office Action (final refusal) means the examining attorney is maintaining at least one refusal and your options are narrower. You can file a response addressing the refusal, appeal to the Trademark Trial and Appeal Board, or let the application abandon. |
| Nov 6, 2018 | TEME | TEAS/EMAIL CORRESPONDENCE ENTERED | — |
| Nov 6, 2018 | CRFA | CORRESPONDENCE RECEIVED IN LAW OFFICE | — |
| Nov 5, 2018 | ALIE | ASSIGNED TO LIE | — |
| Oct 25, 2018 | TROA | TEAS RESPONSE TO OFFICE ACTION RECEIVED | 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 27, 2018 | GNRN | NOTIFICATION OF NON-FINAL ACTION E-MAILED | A non-final Office Action means the USPTO examining attorney has raised at least one issue with your trademark application but has not made a final decision. You usually have three months to respond with arguments, amendments, or evidence. Missing the deadline can abandon the application. |
| Apr 27, 2018 | GNRT | NON-FINAL ACTION E-MAILED | A non-final Office Action means the USPTO examining attorney has raised at least one issue with your trademark application but has not made a final decision. You usually have three months to respond with arguments, amendments, or evidence. Missing the deadline can abandon the application. |
| Apr 27, 2018 | CNRT | NON-FINAL ACTION WRITTEN | A non-final Office Action means the USPTO examining attorney has raised at least one issue with your trademark application but has not made a final decision. You usually have three months to respond with arguments, amendments, or evidence. Missing the deadline can abandon the application. |
| Apr 19, 2018 | DOCK | ASSIGNED TO EXAMINER | — |
| Jan 24, 2018 | NWOS | NEW APPLICATION OFFICE SUPPLIED DATA ENTERED | — |
| Jan 13, 2018 | NWAP | NEW APPLICATION ENTERED | — |