In what appears to be the final nail in the coffin for a lawsuit brought by relatives of Superman artist and co-creator Joe Shuster against Warner Bros., the United States Supreme Court has declined to review a ruling by the 9th Circuit Court that found that a 1992 agreement between then DC Comics President Paul Levitz and Jean Peavy, the sister of Joe Schuster precludes the Schuster heirs from terminating DC and Waner Brothers' Superman rights (see "Warners Wins Another Round in Superman Case").  The Supreme Court’s refusal to review the Superman case means that the lower court ruling will stand, which marks the end of the case brought by Attorney Marc Toberoff who attempted to use the termination provisions of the 1976 Copyright Act to reclaim the rights to Superman for the heirs of the character’s creators.
 
According to The Undisputed Legal Inc. blog, the Supreme Court made no comment when declining to review the Schuster case except to note that Chief Justice John Roberts was not involved in the decision not to review the 9th Circuit Court ruling.