When was the trademark established for the manufacturing that occurred starting in 1990 at Spring Hill Manufacturing?
Spring Hill Manufacturing: Spring Hill Manufacturing is a General Motors factory in Spring Hill, Tennessee. Spring Hill Manufacturing:  It opened in 1990 as the site for Saturn manufacturing and continued through March 2004 as the sole manufacturing plant overseen by the Saturn subsidiary. Saturn Corporation: The Saturn Corporation, also known as Saturn LLC, is a registered trademark established on January 7, 1985, as a subsidiary of General Motors.
January 7, 1985