Per Official Gazette of the United States Patent Office. Volume 492, July 1938 (July 19), page 500, title submitted to Trademark Office on January 28, 1938. Logo submitted was that on this ashcan edition, which is nearly the same as the one later used for Action Comics (DC, 1938 series) #1 (dated June 1938, but on sale April 18, 1938). There are slight differences between the two in the word 'Comics'. Trademark serial number 402,431. Merwil Publishing Co. Inc., New York, New York. Action Comics for magazine publication. Claims in use since December 1, 1937.