Two page preview of the Superman story appearing in ACTION COMICS (DC, 1938 series) #53 (October 1942).
The Catalog of Copyright Entries, Periodicals, 1942 lists the copyright owner as "Superman, Inc". The text under the splash page says "Copyright, 1942, by TIM PROMOTIONS, INC., 1776 Broadway, New York, N. Y. Official licensee SUPERMAN, INC. Entire contents protected by copyright in the U. S. and must not be reproduced without permission of the licensee."