U.S. federal trademark · Serial No. 87246905
Educational books featuring science and history; Educational publications, namely, mystery and adventure in the fields of history and science; A series of fiction works, namely, novels and books featuring mystery, history and science; Children's books; Educational books featuring history and science; Educational publications, namely, mystery in the fields of history and science; Scholarly books on various topics, namely, history and science; Series of non-fiction books in the field of mystery, history and science
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.