Talk:美国版权法
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版權期限的問題
en:United_States_copyright_law#Duration_of_copyright
提到：
The Copyright Act of 1976 maintained this until 2047, which as subsequently extended by the Sonny Bono Copyright Term Extension Act to 2067. As a result, no sound recording can reliably be considered in the public domain in the United States before that date, even if the recording was in existence before 1923 and even if it originated in another country where it has entered the public domain.
似乎與內容：
出於法律的改變，到2019年為止不會有作品進入公有領域。
有些出入？
外部链接已修改
各位维基人：
我刚刚修改了美国版权法中的1个外部链接，请大家仔细检查我的编辑。如果您有疑问，或者需要让机器人忽略某个链接甚至整个页面，请访问这个简单的FAQ获取更多信息。我进行了以下修改：
- 向 http://www.copyright.cornell.edu/training/Hirtle_Public_Domain.htm 中加入存档链接 https://web.archive.org/web/20120704071954/http://www.copyright.cornell.edu/training/Hirtle_Public_Domain.htm
有关机器人修正错误的详情请参阅FAQ。