Trademark Overview
On Thursday, November 14, 1957, a trademark application was filed for DORR-OLIVER with the United States Patent and Trademark Office. The USPTO has given the DORR-OLIVER trademark a serial number of 72040671. The federal status of this trademark filing is EXPIRED as of Monday, April 19, 1999. This trademark is owned by DORR-OLIVER INCORPORATED. The DORR-OLIVER trademark is filed in the Machinery Products category with the following description:
AERATORS, AGITATORS, BAR SCREENS, CLASSIFIERS, DISINTEGRATORS, FLOCCULATING EQUIPMENT, HYDROCYCLONES, PUMPS, REPULPERS, ROTARY SCREENS, SAND WASHERS, SEWAGE DISTRIBUTORS, SEWAGE DIGESTERS, SLURRY MIXERS, AND THICKENERS