| Serial Number | 73212282 |
| Word Mark | DURENEX |
| Filing Date | Thursday, April 19, 1979 |
| Status | 710 - CANCELLED - SECTION 8 |
| Status Date | Friday, May 13, 2022 |
| Registration Number | 1175658 |
| Registration Date | Tuesday, November 3, 1981 |
| Mark Drawing | 1000 - Typeset: Word(s) / letter(s) / number(s) |
| Published for Opposition Date | Tuesday, August 11, 1981 |
| Goods and Services | Filtration Control Agent for Use in Water-Base Drilling Fluids, to Control Fluid Loss from Such Drilling Fluids |
| 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, May 13, 2022 |
| Primary Code | 001 |
| First Use Anywhere Date | Wednesday, August 23, 1978 |
| First Use In Commerce Date | Wednesday, August 23, 1978 |
| Party Name | HALLIBURTON ENERGY SERVICES, INC. |
| Party Type | 41 - New Owner After Registration |
| Legal Entity Type | 03 - Corporation |
| Address | CARROLLTON, TX 75006 |
| Party Name | N L Industries, Inc. |
| Party Type | 30 - Original Registrant |
| Legal Entity Type | 03 - Corporation |
| Address | Houston, TX 77027 |
| Party Name | N L Industries, Inc. |
| Party Type | 20 - Owner at Publication |
| Legal Entity Type | 03 - Corporation |
| Address | Houston, TX 77027 |
| Party Name | N L Industries, Inc. |
| Party Type | 10 - Original Applicant |
| Legal Entity Type | 03 - Corporation |
| Address | Houston, TX 77027 |
| Event Date | Event Description |
| Friday, May 13, 2022 | CANCELLED SEC. 8 (10-YR)/EXPIRED SECTION 9 |
| Tuesday, November 3, 2020 | COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED |
| Wednesday, August 10, 2016 | ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED |
| Wednesday, August 10, 2016 | TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED |
| Tuesday, February 24, 2015 | ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED |
| Tuesday, February 24, 2015 | TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED |
| Thursday, March 15, 2012 | NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED |
| Thursday, March 15, 2012 | REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS) |
| Thursday, March 15, 2012 | REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED |
| Tuesday, March 13, 2012 | TEAS SECTION 8 & 9 RECEIVED |
| Tuesday, March 13, 2012 | TEAS CHANGE OF CORRESPONDENCE RECEIVED |
| Thursday, March 13, 2008 | CASE FILE IN TICRS |
| Friday, July 27, 2001 | REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS) |
| Friday, July 27, 2001 | REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED |
| Wednesday, April 25, 2001 | REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED |
| Saturday, March 12, 1988 | REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK. |
| Monday, August 3, 1987 | REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED |
| Tuesday, November 3, 1981 | REGISTERED-PRINCIPAL REGISTER |
| Tuesday, August 11, 1981 | PUBLISHED FOR OPPOSITION |