USPTO serial 71263926
CORHART
Reviewed by CopyMark Law Group
- Filing date
- Status date
- Registration date
- Sep 18, 1928
- Examiner
- —
- Law office
- GENERIC WEB UPDATE
What this means
Status 800 means the registration was renewed after acceptable combined Section 8 and Section 9 filings. The mark remains registered for another 10-year term with active federal protection. Calendar the next Section 8 and 9 deadline in 10 years and maintain monitoring.
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Owner
LOUISVILLE, KY
Saint-Gobain Ceramics & Plastics, Inc.
Malvern, PA
Other trademarks owned by Saint-Gobain Ceramics & Plastics, Inc.
COHART REFRACTORIES CORPORATION
LOUISVILLE, KY
Goods and services
| Class | Description | Status | First use |
|---|---|---|---|
| 012 | REFRACTORY BLOCKS FOR FURNACES | ACTIVE | Mar 19, 1928 |
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 CORHART REFRACTORIES COMPANY
- Other trademarks owned by Saint-Gobain Ceramics & Plastics, Inc.
- Other trademarks owned by COHART REFRACTORIES CORPORATION
- Other trademarks in Class 012
- Similar marks named CORHART
- Recently changed USPTO trademarks
- Recently filed trademarks
- Browse all trademark records
Prosecution history
| Date | Code | Event | What it means |
|---|---|---|---|
| Oct 9, 2025 | EWAF | TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS | — |
| Oct 9, 2025 | TCCA | TEAS CHANGE OF CORRESPONDENCE RECEIVED | — |
| Oct 9, 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. |
| Oct 9, 2025 | REAP | TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED | — |
| Jun 20, 2023 | TCCA | TEAS CHANGE OF CORRESPONDENCE RECEIVED | — |
| Jun 20, 2023 | 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. |
| Jun 20, 2023 | REAP | TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED | — |
| Jun 20, 2023 | CHAN | APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED | — |
| Jun 20, 2023 | COAR | TEAS CHANGE OF OWNER ADDRESS RECEIVED | — |
| Sep 24, 2018 | NA89 | NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED | — |
| Sep 24, 2018 | RNL5 | REGISTERED AND RENEWED (FIFTH RENEWAL - 10 YRS) | — |
| Sep 24, 2018 | 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. |
| Sep 24, 2018 | APRE | CASE ASSIGNED TO POST REGISTRATION PARALEGAL | — |
| Sep 17, 2018 | E89R | TEAS SECTION 8 & 9 RECEIVED | — |
| Sep 17, 2018 | TCCA | TEAS CHANGE OF CORRESPONDENCE RECEIVED | — |
| Sep 18, 2017 | REM2 | COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED | — |
| May 4, 2016 | 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. |
| May 4, 2016 | REAP | TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED | — |
| Sep 30, 2008 | RNL4 | REGISTERED AND RENEWED (FOURTH RENEWAL - 10 YRS) | — |
| Sep 30, 2008 | 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. |
| Sep 30, 2008 | PLGL | ASSIGNED TO PARALEGAL | — |
| Sep 29, 2008 | CFIT | CASE FILE IN TICRS | — |
| Sep 18, 2008 | E89R | TEAS SECTION 8 & 9 RECEIVED | — |
| Sep 18, 1988 | REN3 | REGISTERED AND RENEWED (THIRD RENEWAL - 20 YRS) | — |
| Sep 18, 1968 | REN2 | REGISTERED AND RENEWED (SECOND RENEWAL - 20 YRS) | — |