Thats what i thought but what about q, z, space and SAS force and the ENEMY. Hasbro only released renamed gi joe toys but who has the copyright?

Does anyone know who actually owns the rights to action force and the red shadows?
Would an independant toy company be able to produce toys under the action force banner?
How could someone claim a trademark or copyright on SAS for example?
I've looked online but can find no info and am just curious