 On March 18, Parker Brothers bought Darrow's game, helped him take out a patent on it, and purchased his remaining inventory.By April, 1935, the company had learned that Darrow was not the sole inventor of the game, but sought out an affidavit by Darrow to repeat his statements to the contrary, and thus bolster their claim to the game.Parker Brothers subsequently decided to buy out Magie's 1924 patent and the copyrights of other commercial variants of the game to claim that it had legitimate undisputed rights to the game.