A trademark is a word, phrase, symbol or design, or a combination thereof, that identifies and distinguishes the source of the goods of one party from those of others. Trademarks, unlike patents, can be renewed forever as long as they are being used in business.
A service mark is a word, phrase, symbol or design, or a combination thereof, that identifies and distinguishes the source of a service rather than goods. The term “trademark” is often used to refer to both trademarks and service marks.