DUOFRAC Trademark
Trademark Overview
On Monday, June 8, 1964, a trademark application was filed for DUOFRAC with the United States Patent and Trademark Office. The USPTO has given the DUOFRAC trademark a serial number of 72195075. The federal status of this trademark filing is CANCELLED - SECTION 8 as of Friday, January 23, 2026. This trademark is owned by DOW CHEMICAL COMPANY, THE. The DUOFRAC trademark is filed in the Chemical Products category with the following description:
CHEMICAL ADDITIVES FOR ACID COMPOSITIONS USEFUL IN THE TREATMENT OF WELLS AND UNDERGROUND EARTH FORMATIONS
General Information
| Serial Number | 72195075 |
| Word Mark | DUOFRAC |
| Filing Date | Monday, June 8, 1964 |
| Status | 710 - CANCELLED - SECTION 8 |
| Status Date | Friday, January 23, 2026 |
| Registration Number | 0792448 |
| Registration Date | Tuesday, July 13, 1965 |
| Mark Drawing | 1 - Typeset: Word(s) / letter(s) / number(s) |
| Published for Opposition Date | NOT AVAILABLE |
Trademark Statements
| Goods and Services | CHEMICAL ADDITIVES FOR ACID COMPOSITIONS USEFUL IN THE TREATMENT OF WELLS AND UNDERGROUND EARTH FORMATIONS |
Classification Information
| International Class | 001 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial resins; unprocessed plastics; manures; fire extinguishing compositions; tempering and soldering preparations; chemical substances for preserving foodstuffs; tanning substances; adhesives used in industry. |
| US Class Codes | 006 |
| Class Status Code | 2 - Sec. 8 - Entire Registration |
| Class Status Date | Friday, January 23, 2026 |
| Primary Code | 006 |
| First Use Anywhere Date | Friday, January 31, 1958 |
| First Use In Commerce Date | Wednesday, April 23, 1958 |
Trademark Owner History
| Party Name | SCHLUMBERGER TECHNOLOGY CORPORATION |
| Party Type | 41 - New Owner After Registration |
| Legal Entity Type | 03 - Corporation |
| Address | SUGAR LAND, TX 77478 |
| Party Name | DOWELL SCHLUMBERGER INCORPORATED |
| Party Type | 40 - New Owner After Registration |
| Legal Entity Type | 03 - Corporation |
| Address | TULSA, OK 74101 |
| Party Name | DOW CHEMICAL COMPANY, THE |
| Party Type | 30 - Original Registrant |
| Legal Entity Type | 03 - Corporation |
| Address | MIDLAND, MI |
Trademark Events
| Event Date | Event Description |
| Monday, August 19, 1985 | REGISTERED - SEC. 9 FILED/CHECK RECORD FOR SEC. 8 |
| Saturday, July 13, 1985 | REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS) |
| Tuesday, July 12, 2005 | TEAS SECTION 8 & 9 RECEIVED |
| Tuesday, July 12, 2005 | REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED |
| Friday, January 20, 2006 | ASSIGNED TO PARALEGAL |
| Friday, January 20, 2006 | REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED |
| Friday, January 20, 2006 | REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS) |
| Wednesday, February 27, 2008 | AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP |
| Monday, February 2, 2009 | CASE FILE IN TICRS |
| Wednesday, April 22, 2015 | ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY |
| Wednesday, July 1, 2015 | TEAS SECTION 8 & 9 RECEIVED |
| Friday, July 24, 2015 | CASE ASSIGNED TO POST REGISTRATION PARALEGAL |
| Friday, July 31, 2015 | REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED |
| Friday, July 31, 2015 | REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS) |
| Friday, July 31, 2015 | NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED |
| Saturday, July 13, 2024 | COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED |
| Friday, January 23, 2026 | CANCELLED SEC. 8 (10-YR)/EXPIRED SECTION 9 |
