English: Page one of the U.S. Patent and Trademark Office filing by Charles Darrow for a patent on the board game Monopoly, filed and granted in February 6 1935. Original image available online at the U.S. Patent and Trademark Office, converted to PNG by John D. Buell. Please note that Parker Brothers/Hasbro still hold trademarks on specific design elements of the game, including but not limited to the general game board design, the locomotive silhouettes, the question mark design for "Chance" spaces, the car on "Free Parking", the "Jake the Jailbird" design, and the police officer on "Go to Jail."