Trademark Overview
On Thursday, June 5, 1986, a trademark application was filed for KEYSTONE with the United States Patent and Trademark Office. The USPTO has given the KEYSTONE trademark a serial number of 73602430. The federal status of this trademark filing is ABANDONED - FAILURE TO RESPOND OR LATE RESPONSE as of Thursday, March 26, 1987. This trademark is owned by KEYSTONE PORTLAND CEMENT COMPANY. The KEYSTONE trademark is filed in the Construction & Repair Services category with the following description:
CEMENT, CONSTRUCTION, AGGREGATES AND RESOURCE RECOVERY