What is a trademark or service mark?
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.
No. Trademarks, copyrights and patents all differ. A copyright protects an original artistic or literary work; a patent protects an invention. For copyright information, go to http://lcweb.loc.gov/copyright/. For patent information, go to http://www.uspto.gov/main/patents.htm. 
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