Re: Marvel Legacies
During the 50's they published some reprints but your right about them not being part of the Marvel Universe there was a law suit which was settled but during that time the MU DD at first didn't wear a costume then for awhile went back to the yellow one.
He was in the Fem-force Universe as Red Devil too, also the GA Blue Beetle was used but was called Scarlet Scorpion.
I believe for the most part both DC and Marvel have settled all the rights problems.