Termination notices were recently filed on behalf of Larry Lieber, the brother of the late Stan Lee and co-creator of Spider-Man, Thor and more, as well as the estates of Don Rico, who co-created Black Widow, Don Heck, co-creator of Iron Man and Black Widow, Gene Colan, who launched names like Captain Marvel and Blade, and finally, Steve Ditko, who co-created Spider-Man and Doctor Strange. All parties are being represented by veteran attorney Marc Toberoff, per Variety.
Source: Source: Cinema Blend