 The catchphrase is also registered as a trademark for products, like clothing apparel, electronic devices, and alcoholic beverages.On September 6, 2007, Hilton filed an injunction lawsuit against Hallmark Cards Inc., titled "Hilton v. Hallmark Cards", in U.S. District Court over the unlawful use of her picture and catchphrase "That's hot" on a greeting card.The card is titled "Paris's First Day as a Waitress" with a photograph of Hilton's face on a cartoon of a waitress serving a plate of food, with a dialogue bubble saying "Don't touch that, it's hot" (which had a registered trademark on February 13, 2007).