Trademark Overview
On Wednesday, July 1, 1964, a trademark application was filed for BLACK DIAMOND with the United States Patent and Trademark Office. The USPTO has given the BLACK DIAMOND trademark a serial number of 72196896. The federal status of this trademark filing is EXPIRED as of Sunday, September 29, 1985. This trademark is owned by NATIONAL MUSICAL STRING CO.. The BLACK DIAMOND trademark is filed in the Musical Instrument Products category with the following description:
STRINGS FOR MUSICAL INSTRUMENTS