History of the board game Monopoly reversed. The case was then appealed by General Mills/Parker Brothers to the United States Supreme Court, which decided not to hear the case in February 1983, and denied a petition for rehearing in April. This allowed the appeals court's decision to stand and further allowed Anspach to resume publication of his game. With the trademark nullified, the name "Monopoly" entered the public domain, where the naming of games was concerned, and a profusion of non-Parker-Brothers variants were published. Parker Brothers and other firms lobbied the United States Congress and obtained a revision of the trademark laws. The case was finally
Mystery Mansion (board game) Mystery Mansion (board game) Mystery Mansion is the name of a series of board games in which players search furniture and other objects inside a mansion to locate a hidden treasure or stash of money. The first version of the game was released by the Milton Bradley Company in 1984, the same year when Hasbro took over that company. Instead of a standard game board, the original "Mystery Mansion" features a modular board where players build the mansion by adding new rooms drawn at random. Hasbro then released an electronic talking version under its Parker Brothers brand in the 1990s.