Published works by known authors. Seventy years have passed since 1 January of the year following the year in which the author died (or, if there were joint authors, the year in which the author dying last died): Articles 31(1) and (2).
Published works by unknown authors. Seventy years have passed since 1 January of the year following the year in which the work was first disclosed: Article 31(3). (If the author becomes known during this time, the preceding paragraph applies.)
Unpublished works by unknown authors. Seventy years have passed since the date when the work was created, and 25 years have passed since 1 January of the year following the year in which the work was legally disclosed by a person other than the author: Articles 31(7) and 32.
Official works. It is a provision of law, some other legal instrument of state administration, a judicial or authority decision, an authority or other official announcement or document, or a standard or other like provision made obligatory by a legislative act: Article 1(4).
Facts and daily news. It consists of facts or daily news that serves as a basis for press information: Article 1(5).
Folklore. It is an expression of folklore: Article 1(7). (Note, however, that works of an individual and original nature that are inspired by folk art are subject to copyright.)
You must also include a United States public domain tag to indicate why this work is in the public domain in the United States.
일부 국가는 저작권을 사후 70년보다 더 길게 적용하고 있으므로 주의가 필요합니다. 멕시코는 100년, 자메이카는 95년, 콜롬비아는 80년, 과테말라와 사모아는 75년을 저작권 보호 기간으로 적용하고 있습니다. 따라서 해당 국가에서 이 작품은 퍼블릭 도메인이 아닐 수 있으며, 저작권 상호주의 또한 적용되지 않을 수 있습니다.