DUO-FLOW Trademark
Trademark Overview
On Tuesday, February 19, 1980, a trademark application was filed for DUO-FLOW with the United States Patent and Trademark Office. The USPTO has given the DUO-FLOW trademark a serial number of 73250791. The federal status of this trademark filing is CANCELLED - SECTION 8 as of Wednesday, February 17, 1988. This trademark is owned by Harshaw Chemical Company, The. The DUO-FLOW trademark is filed in the Environmental Control Instrument Products category with the following description:
Horizontal Plate Filters
General Information
| Serial Number | 73250791 |
| Word Mark | DUO-FLOW |
| Filing Date | Tuesday, February 19, 1980 |
| Status | 710 - CANCELLED - SECTION 8 |
| Status Date | Wednesday, February 17, 1988 |
| Registration Number | 1164551 |
| Registration Date | Tuesday, August 11, 1981 |
| Mark Drawing | 1000 - Typeset: Word(s) / letter(s) / number(s) |
| Published for Opposition Date | Tuesday, May 19, 1981 |
Trademark Statements
| Goods and Services | Horizontal Plate Filters |
Classification Information
| International Class | 011 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply, and sanitary purposes. |
| US Class Codes | 031 |
| Class Status Code | 2 - Sec. 8 - Entire Registration |
| Class Status Date | Wednesday, February 17, 1988 |
| Primary Code | 011 |
| First Use Anywhere Date | Monday, April 23, 1979 |
| First Use In Commerce Date | Monday, April 23, 1979 |
Trademark Owner History
| Party Name | Harshaw Chemical Company, The |
| Party Type | 30 - Original Registrant |
| Legal Entity Type | 03 - Corporation |
| Address | Cleveland, OH 44106 |
| Party Name | Harshaw Chemical Company, The |
| Party Type | 20 - Owner at Publication |
| Legal Entity Type | 03 - Corporation |
| Address | Cleveland, OH 44106 |
| Party Name | Harshaw Chemical Company, The |
| Party Type | 10 - Original Applicant |
| Legal Entity Type | 03 - Corporation |
| Address | Cleveland, OH 44106 |
Trademark Events
| Event Date | Event Description |
| Wednesday, February 17, 1988 | CANCELLED SEC. 8 (6-YR) |
| Tuesday, August 11, 1981 | REGISTERED-PRINCIPAL REGISTER |
| Tuesday, May 19, 1981 | PUBLISHED FOR OPPOSITION |
