Can you trademark a character from a public domain story?

Hold on to your loincloths! Last week, it was announced that Edgar Rice Burroughs, Inc. is suing Dynamite Entertainment over its Lord of the Jungle and Warlord of Mars comics. ERB Inc., which represents the Burroughs family, accuses Dynamite of violating the trademark for characters like Tarzan and John Carter. And… » 2/27/12 5:00pm 2/27/12 5:00pm