Super Duck Resembles Donald Duck

Doesn't Super Duck somewhat resemble Donald Duck? Here's what surprised me. I thought this was maybe published before Donald Duck and that Disney copied from it like it did from numerous public domain stories.

I was wrong. Donald Duck was created in 1934; Super Duck in 1943.

Here's what surprised me. Even thought Disney made it's reputation taking public domain stories and creating their own version, they are seemingly against others doing the same. They're strict on using their likeness and they were one of the ones responsible for extending public domain lengths.

So I'm surprised and happy they didn't stop this. It's a pretty good comic book and Super Duck is quite a character.