United States
Answer ...
Under Section 45 of the Lanham Act (15 USC § 1127), a trademark includes any “word, name, symbol or device, or any combination thereof” used by a party to identify its goods from those manufactured or sold by others and to indicate the source of those goods, even if the source is unknown. Any of those things that identify a seller’s services is a service mark and service marks are protected equally with trademarks. In addition to word marks, stylised word marks and design marks (logos), product configurations, colours, sounds and even scents can serve as trademarks.
United States
Answer ...
See questions 1.1. and 2.1.
United States
Answer ...
Generic terms, descriptive terms that have not developed ‘secondary meaning’ as trademarks (ie, acquired distinctiveness), and functional features are not eligible to function as trademarks.