If the 1930s was the de Forest decade of confusion and resolution, the 1940s will be the decade of the rant. By the 1930s his sound-on-film inventions were universally used by Hollywood for their profit, and while de Forest fought his film patents in court, there was no significant monetary or psychic benefit. He did win a final battle with Major Armstrong but it too only led to a giant letdown, a collective “so what?” He found the good wife, marrying the kind, beautiful, and doting Marie for lifetime marital happiness. But the decade of the 1940s will find Lee de Forest with less to do, less money for lawyers, and even a few unimportant inventions to file. The 1940s de Forest will be a seemingly always peeved person, upset with the Major, upset with radio programming, but living in Hollywood and carefully outlining his legacy. In the last de Forest decade, the 1950s, he will finally find his reward.