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Poor man's copyright is a method of using registered dating by the postal service,〔("Copyright in General" ), a USCO faq page (retrieved Feb. 25, 2013)〕 a notary public or other highly trusted source to date intellectual property, thereby helping to establish that the material has been in one's possession since a particular time. The concept is based on the notion that, in the event that such intellectual property were to be misused by a third party, the poor-man's copyright would at least establish a legally recognized date of possession before any proof which a third party may possess. The PMC was originally used by authors who sent copies of their own work to themselves through the mail without opening the envelopes in the hope that it would grant them legal protection by establishing a date at which the work was created. Use of this method may not hold up in a court as it is simple for individuals to pre-send envelopes which can then be used later by placing the materials inside. In countries with no central copyright registration authority, it can be difficult for an author to prove when their work was created. The United Kingdom Patent Office says this:
There is no provision in US copyright law regarding any such type of protection. Poor man's copyright is therefore not a substitute for registration. According to section 408 of the U.S. Copyright Act of 1976, registration of a work with the Copyright Office is not a prerequisite for copyright protection.〔(17 U.S.C. 408 )〕 == See also == * Copyright registration * Soleau envelope 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「Poor man's copyright」の詳細全文を読む スポンサード リンク
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