generic term

terms that the relevant purchasing public understands primarily as the common or class name for the goods or services. These terms are incapable of functioning as trademarks denoting source, and are not registrable on the Principal Register under §2(f) or on the Supplemental Register. Examples include: CLASSES ONLINE for classes provided via the Internet, PIZZA.COM for pizza ordering and delivery services, and LIVE PLANTS for plant nurseries. — see TMEP for more info