Wikipedia
Noveltoons was an anthology series of animated cartoons produced by Paramount Pictures' Famous Studios from 1943 to the close of the studio in 1967. Casper the Friendly Ghost, Herman and Katnip, Little Audrey, and Baby Huey all got their start from this series. It was the successor series to the Color Classics series produced by Fleischer Studios (indeed, several Noveltoons would feature characters who originated in Color Classics). This series was also very similar to the two series from Warner Bros., Looney Tunes and Merrie Melodies, in that it features several recurring characters under one umbrella title.
The pre-October 1950 Noveltoons were sold to television distributor U.M. & M. TV Corporation in 1956. National Telefilm Associates acquired those cartoons soon afterward. Paramount sold the rest of the Noveltoons to Harvey Comics. As new Noveltoons were produced, they were also sold to Harvey, until 1962. Paramount still owns the remaining Noveltoons, and has reacquired the cartoons sold to U.M. & M., but a good deal of those cartoons have fallen into the public domain.