 "Keen Detective Funnies" was cancelled after issue #24, but Centaur published two more stories in "Detective Eye Comics" #1 and 2 (Nov-Dec 1940) before pulling the plug on the character.After Centaur Publications went out of business, Airman lapsed into the public domain.In the early 1990s, he was revived by Malibu Comics as a character in the series "Protectors", and starred in a namesake, one-shot spin-off.