[627467]

I don't recall how this toy was called back in the 80s but I certainly recall playing with them.

Maybe author could have gone into details of the aspects of this product that deserves protection.

I suppose trademark is one of them. I can certain try to sell something old with a new trademark.

[ogre_codes]

He did.

There are examples where another company copied the instructions manual with specific creations. Even if any protection for the “disc with slots” concept are invalid, there is likely some protection for the manuals. Of course all of this boils down to having enough money for lawyers to defend