
| Serial Number | 73215061 |
| Word Mark | PRAESTOL |
| Filing Date | Thursday, May 10, 1979 |
| Status | 800 - REGISTERED AND RENEWED |
| Status Date | Tuesday, August 2, 2022 |
| Registration Number | 1193821 |
| Registration Date | Tuesday, April 20, 1982 |
| Mark Drawing | 1 - Typeset: Word(s) / letter(s) / number(s) |
| Published for Opposition Date | Tuesday, February 24, 1981 |
| Goods and Services | Chemical Products for Use in the Separation of Solids from Aqueous Systems, Such as Suspensions, Slurries and Sludges, Containing Solid Materials Suspended Therein-Namely, Flocculation, Sedimentation, Dehydration and Retention Agents |
| 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 | 6 - Active |
| Class Status Date | Tuesday, April 20, 1982 |
| Primary Code | 001 |
| First Use Anywhere Date | Wednesday, November 30, 1955 |
| First Use In Commerce Date | Tuesday, November 30, 1976 |
| Party Name | THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT |
| Party Type | 47 - New Owner After Registration |
| Legal Entity Type | 52 - NOT AVAILABLE |
| Address | CHICAGO, IL 60606 |
| Party Name | BIRKO CORPORATION |
| Party Type | 46 - New Owner After Registration |
| Legal Entity Type | 03 - Corporation |
| Address | HENDERSON, CO 80640 |
| Party Name | Solenis Technologies L.P. |
| Party Type | 45 - New Owner After Registration |
| Legal Entity Type | 16 - Limited Liability Company |
| Address | SCHAFFHAUSEN 8200 CH |
| Party Name | ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC |
| Party Type | 44 - New Owner After Registration |
| Legal Entity Type | 16 - Limited Liability Company |
| Address | DUBLIN, OH 43107 |
| Party Name | STOCKHAUSEN GMBH |
| Party Type | 43 - New Owner After Registration |
| Legal Entity Type | 16 - Limited Liability Company |
| Address | KREFELD D-47805 DE |
| Party Name | STOCKHAUSEN GMBH & CO. KG |
| Party Type | 42 - New Owner After Registration |
| Legal Entity Type | 03 - Corporation |
| Address | 47805 KREFELD DE |
| Party Name | Chemische Fabrik Stockhausen & Cie |
| Party Type | 30 - Original Registrant |
| Legal Entity Type | 16 - Limited Liability Company |
| Address | Krefeld 4150 DE |
| Party Name | Chemische Fabrik Stockhausen & Cie |
| Party Type | 10 - Original Applicant |
| Legal Entity Type | 16 - Limited Liability Company |
| Address | Krefeld 4150 DE |
| Party Name | CLEANWISE, INC. |
| Party Type | 46 - New Owner After Registration |
| Legal Entity Type | 03 - Corporation |
| Address | FORT MILL, SC 29708 |
| Party Name | DIVERSEY, INC. |
| Party Type | 46 - New Owner After Registration |
| Legal Entity Type | 03 - Corporation |
| Address | FORT MILL, SC 29708 |
| Party Name | DIVERSEY TASKI, INC. |
| Party Type | 46 - New Owner After Registration |
| Legal Entity Type | 03 - Corporation |
| Address | FORT MILL, SC 29708 |
| Party Name | DIVERSEY US HOLDINGS, LLC |
| Party Type | 46 - New Owner After Registration |
| Legal Entity Type | 16 - Limited Liability Company |
| Address | FORT MILL, SC 29708 |
| Party Name | INNOVATIVE WATER CARE, LLC |
| Party Type | 46 - New Owner After Registration |
| Legal Entity Type | 16 - Limited Liability Company |
| Address | WILMINGTON, DE 19803 |
| Party Name | SOLENIS TECHNOLOGIES, L.P. |
| Party Type | 46 - New Owner After Registration |
| Legal Entity Type | 13 - Limited Partnership |
| Address | WILMINGTON, DE 19803 |
| Event Date | Event Description |
| Tuesday, April 20, 1982 | REGISTERED-PRINCIPAL REGISTER |
| Monday, April 18, 1988 | REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED |
| Friday, September 16, 1988 | POST REGISTRATION ACTION MAILED - SEC. 8 & 15 |
| Monday, March 13, 1989 | RESPONSE RECEIVED TO POST REG. ACTION |
| Monday, March 20, 1989 | REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK. |
| Friday, January 11, 2002 | REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED |
| Friday, March 15, 2002 | REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED |
| Friday, March 15, 2002 | REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS) |
| Wednesday, July 12, 2006 | AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP |
| Monday, March 24, 2008 | CASE FILE IN TICRS |
| Wednesday, September 21, 2011 | ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY |
| Thursday, January 5, 2012 | TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED |
| Thursday, January 5, 2012 | ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED |
| Thursday, January 5, 2012 | TEAS SECTION 8 & 9 RECEIVED |
| Wednesday, February 22, 2012 | CASE ASSIGNED TO POST REGISTRATION PARALEGAL |
| Wednesday, February 22, 2012 | REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED |
| Wednesday, February 22, 2012 | REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS) |
| Wednesday, February 22, 2012 | NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED |
| Wednesday, March 27, 2013 | ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY |
| Wednesday, August 13, 2014 | ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY |
| Wednesday, August 27, 2014 | ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY |
| Wednesday, July 25, 2018 | ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY |
| Wednesday, August 22, 2018 | ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY |
| Wednesday, September 5, 2018 | ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY |
| Tuesday, April 20, 2021 | COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED |
| Wednesday, November 24, 2021 | ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY |
| Wednesday, December 8, 2021 | ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY |
| Wednesday, February 16, 2022 | TEAS SECTION 8 & 9 RECEIVED |
| Tuesday, August 2, 2022 | CASE ASSIGNED TO POST REGISTRATION PARALEGAL |
| Tuesday, August 2, 2022 | REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED |
| Tuesday, August 2, 2022 | REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS) |
| Tuesday, August 2, 2022 | NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED |
| Wednesday, November 16, 2022 | ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY |
| Wednesday, July 19, 2023 | ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY |
| Thursday, July 4, 2024 | ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY |
| Friday, December 5, 2025 | ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY |
| Friday, December 5, 2025 | ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY |
| Thursday, December 11, 2025 | AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP |
| Thursday, December 11, 2025 | AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP |