Trademark Overview
On Friday, June 27, 1952, a trademark application was filed for FILTERDOWN with the United States Patent and Trademark Office. The USPTO has given the FILTERDOWN trademark a serial number of 71631841. The federal status of this trademark filing is EXPIRED as of Monday, May 2, 1994. This trademark is owned by AMERICAN AIR FILTER COMPANY, INC.. The FILTERDOWN trademark is filed in the Ropes, Cordage & Fiber Products category with the following description:
ROLLS OF FIBER GLASS AND COTTON WADDING USED FOR MECHANICAL DRY-TYPE VENTILATING AIR FILTERS OF THE FOLDABLE FRAME AND STATIONARY POCKET TYPES