According to the web search results, the 1940s Superman cartoons are in the public domain, meaning that anyone can use or distribute them without permission from the original creators³. These cartoons were produced by Fleischer Studios and Famous Studios, and based on the comic book character Superman¹. They are considered some of the finest and most lavishly budgeted animated cartoons of the Golden Age of American animation¹. You can watch them online at [Archive.org](^4^)..
