Trademark Overview
On Monday, September 12, 1977, a trademark application was filed for OS with the United States Patent and Trademark Office. The USPTO has given the OS trademark a serial number of 73141002. The federal status of this trademark filing is EXPIRED as of Monday, April 19, 1999. This trademark is owned by OMAHA STEEL CASTINGS CO.. The OS trademark is filed in the Construction & Repair Services category with the following description:
MAKING METAL CASTINGS TO CUSTOMER SPECIFICATION FOR MACHINERY AND INDUSTRIAL USES