Trademark Overview
On Monday, September 23, 1963, a trademark application was filed for F with the United States Patent and Trademark Office. The USPTO has given the F trademark a serial number of 72177520. The federal status of this trademark filing is EXPIRED as of Sunday, August 4, 1985. This trademark is owned by FRANKLIN FROHLICH. The F trademark is filed in the Environmental Control Instrument Products category with the following description:
HEAT EXCHANGER APPARATUS FOR EXCHANGING HEAT BETWEEN PLURAL CONFINED FLUID STREAMS, PARTICULARLY INDUSTRIAL HEAT EXCHANGER APPARATUS HAVING GLASS HEAT TRANSMITTING ELEMENTS