SCO Group v. DaimlerChrysler was a lawsuit filed in the United States, in the state of Michigan. In December 2003, SCO sent a number of letters to Unix licensees. In these letters, SCO demanded that the licensees certify certain things regarding their usage of Linux. DaimlerChrysler, a former Unix user and current Linux user, did not respond to this letter. On March 3, 2004, SCO filed suit against DaimlerChrysler for violating their Unix license agreement, by failing to respond to the certification request made by SCO. The parties agreed to a stipulated dismissal order on December 21, 2004. The case was dismissed without prejudice, but if SCO wishes to pursue the timeliness claim again, it must pay DaimlerChrysler's legal fees since August 9. On December 29, 2004, SCO filed a claim of appeal notice. On January 31, 2005, the claim of appeal was dismissed. History For use on their Cray supercomputer, Chrysler Corporation bought a Unix source license from AT&T on September 2, 1988. A source license allows the licensee to view, modify and use the Unix source code on a number of specific machines (designated CPUs). Through a number of acquisitions, The SCO Group became the licensing agent that handled Unix source licenses. Chrysler Motors Corporations merged with Daimler-Benz in 1998 forming DaimlerChrysler. Background information The licenses sold by AT&T allow the licensor to ask for certification regarding the use of the licensed product. On [SCO's] request, but not more frequently than annually, LICENSEE shall furnish to [SCO] a statement, certified by an authorized representative of LICENSEE, listing the location, type and serial number of all DESIGNATED CPUs hereunder and stating that the use by LICENSEE of SOFTWARE PRODUCTS subject to this Agreement has been reviewed and that each such SOFTWARE PRODUCT is being used solely on DESIGNATED CPUs (or temporarily on back-up CPUs) for such SOFTWARE PRODUCTS in full compliance with the provisions of this Agreement. The SCO Group invoked their right to ask for certification on December 18, 2003. In addition to the certification specified in the license, SCO also instructed the Unix licensees to certify their use of Linux, a competing operating system. DaimlerChrysler did not respond to this letter. In fact, it is possible that DaimlerChrysler never received it; it was addressed to Chrysler Motors Corporation at 12800 Oakland Avenue in Highland Park, Michigan, but Chrysler Corporation (as it was then known) had announced the