Trademarks: A basic primer on trademarks and trademark law
Trademarks differ from copyrights, which protect original artistic or literary works, and patents, which protect inventions. A trademark primarily protects names, logos or symbols that identify a particular creator of goods or provider of services. More specifically, a trademark is a word, phrase, symbol or design, or a combination of words, phrases, symbols or designs, that identifies and distinguishes the source of the goods of one party from those of others. A service mark is the same as a trademark, except that it identifies and distinguishes the source of a service rather than a product. In most instances the term “trademark” is simply used to refer to what the law calls either a trademark or a service mark, so do not be surprised if you see a service mark (an example would be Roto Rooter) simply referred to as a trademark by judges, lawyers and business people.