Mealey's (April 2, 2020, 12:13 PM EDT) -- WASHINGTON, D.C. — In a March 13 merits reply brief, the U.S. Patent and Trademark Office (PTO) tells the U.S. Supreme Court that longstanding case law teaches that the adding of a top-level domain (TLD), such as “.com,” to a generic term does not create a registrable, protectable trademark, asking the high court to reverse a Fourth Circuit U.S. Court of Appeals ruling to the contrary in favor of Booking.com B.V. (U.S. Patent and Trademark Office, et al. v. Booking.com B.V., No. 19-46, U.S. Sup.)....