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The copyright symbol, or copyright sign, © (a circled capital letter "C"), is the symbol used in copyright notices for works other than sound recordings (which are indicated with the ). The use of the symbol is described in United States copyright law,〔17 U.S.C. 〕 and, internationally, by the Universal Copyright Convention.〔Universal Copyright Convention, Article III, §1. (Paris text, July 24, 1971.)〕 The symbol is widely recognized, but under the Berne Convention is no longer required to obtain a new copyright in most nations. For instance, the United States eliminated the copyright symbol requirement as of March 1, 1989, but its presence or absence is legally significant on works published previously. The C stands for copyright. ==History== Prior symbols indicating a work's copyright status are seen in Scottish almanacs of the 1670s; books included a printed copy of the local coat-of-arms to indicate their authenticity. A copyright notice was first required in the U.S. by the Copyright Act of 1802. It was lengthy: "Entered according to act of Congress, in the year , by A. B., in the office of the Librarian of Congress, at Washington." In general, this notice had to appear on the copyrighted work itself, but in the case of a "work of the fine arts", such as a painting, it could instead be inscribed "on the face of the substance on which (work of art ) shall be mounted".〔Copyright Act of 1870, §97.〕 The Copyright Act was amended in 1874 to allow a much shortened notice: "Copyright, 18, by A. B."〔1874 Amendment to the Copyright Act of 1870, §1.〕 The copyright symbol © was introduced in the United States by a 1954 amendment to the Copyright Act of 1909, section 18.〔Copyright Act of 1909, §18.〕 The Copyright Act of 1909 was meant to be a complete rewrite and overhaul of existing copyright law. As originally proposed in the draft of the bill, copyright protection required putting the word "copyright" or a sanctioned abbreviation on the work of art itself. This included paintings, the argument being that the frame was detachable. In conference sessions among copyright stakeholders on the proposed bill, conducted in 1905 and 1906, representatives of artist organizations objected to this requirement, wishing to put no more on the work itself than the artist's name. As a compromise, the possibility was created to add a relatively unintrusive mark, the capital letter C within a circle, to appear on the work itself next to the artist's name, indicating the existence of a more elaborate copyright notice elsewhere that was still to be allowed to be placed on the mounting. Indeed, the version of the bill that was submitted to Congress in 1906, compiled by the Copyright Commission under the direction of the Librarian of Congress, Herbert Putnam, contained a provision that a special copyright symbol, the letter C inclosed within a circle, could be used instead of the word "copyright" or the abbreviation "copr.", but only for a limited category of copyrightable works, including works of art but not ordinary books or periodicals. The formulation of the 1909 Act was left unchanged when it was incorporated in 1946 as title 17 of the United States Code; when that title was amended in 1954, the symbol © was allowed as an alternative to "Copyright" or "Copr." in all copyright notices.〔''An Act to amend title 17, United States Code, entitled "Copyrights"'', .〕 In countries party to the Berne Convention for the Protection of Literary and Artistic Works, including the modern-day U.S., a copyright notice is not required to be displayed in order for copyright to be established; rather, the creation of the work automatically establishes copyright. The United States was one of the later accedents to Berne (1989); the majority of nations now belong to Berne, and thus do not require copyright notices to obtain copyright. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「copyright symbol」の詳細全文を読む スポンサード リンク
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