Use of the logo here does not imply endorsement of the organization by Wikipedia or the Wikimedia Foundation, nor does it imply endorsement of Wikipedia or the Wikimedia Foundation by the organization. Image File history File links Red_copyright. ... A logotype, commonly known as a logo, is the graphic element of a trademark or brand, which is set in a special typeface and/or font, or arranged in a particular, but legible, way. ... Copyright symbol. ... A trademark (Commonwealth English: trade mark) is a distinctive sign of some kind which is used by a business to uniquely identify itself and its products and services to consumers, and to distinguish the business and its products or services from those of other businesses. ... The fair use doctrine is an aspect of United States copyright law that provides for the licit, non-licensed citation or incorporation of copyrighted material in another authors work under a four-factor balancing test. ... The power to enact United States copyright law is granted in Article One, section 8, of the United States Constitution, which states: The Congress shall have Power. ... Copyright infringement (also known as piracy) is the unauthorized use of copyrighted material in a manner that violates one of the copyright owners exclusive rights, such as the right to reproduce or perform the copyrighted work, or to make derivative works that build upon it. ... The Wikimedia Foundation Inc. ...