Trademark Overview
On Monday, March 4, 1968, a trademark application was filed for COMPLEX/O with the United States Patent and Trademark Office. The USPTO has given the COMPLEX/O trademark a serial number of 72292393. The federal status of this trademark filing is EXPIRED as of Tuesday, November 3, 1992. This trademark is owned by LUBRICATION ENGINEERS, INC.. The COMPLEX/O trademark is filed in the Lubricant & Fuel Products category with the following description:
OIL SUPPLEMENT FOR INTERNAL COMBUSTION ENGINE OILS