Answers.Body: <p>ISBN does not give information about the copyright status of the book: ISBN numbers are just identifiers, and publishers buy them in bunches.</p>
  <p>For books published after 1978, copyright usually extends until 70 years after the death of the last author of the book: some nation may have different durations, however. As for books published before 1978, it depends from where you are located. Wikipedia <a href="https://en.wikipedia.org/wiki/Copyright_law_of_the_United_States#Duration_of_copyright" rel="nofollow noreferrer">has some information</a>, but you should better check your local laws.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-01-04T21:37:33.937Z
Answers.LastActivityDate: 2022-01-04T21:37:33.937Z
Answers.UserDisplayName: mau
Body: <p>How long lasts the copyright over a book?
  Is there a way to check the current copyright status of a book by using ISBN?</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-01-03T16:13:52.397Z
Comments.Text: Sorry what do you mean?
Comments.UserDisplayName: mmmmmm
Tags: <metadata><copyright><isbn><statistics>
Title: How to check the current copyright status of books?
UserDisplayName: Deduce Uptight
ThreadText: # How to check the current copyright status of books?
  
  (Asked by: username_0 on 2022-01-03)
  
  How long lasts the copyright over a book?
  Is there a way to check the current copyright status of a book by using ISBN?
  
  **Tags:** metadata, copyright, isbn, statistics
  
  > **Comments:**
  > **username_1**: Sorry what do you mean?  
  
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  ## 1 answers
  
  ### Answer by username_2 on 2022-01-04. Score: 2
  
  ISBN does not give information about the copyright status of the book: ISBN numbers are just identifiers, and publishers buy them in bunches.
  
  For books published after 1978, copyright usually extends until 70 years after the death of the last author of the book: some nation may have different durations, however. As for books published before 1978, it depends from where you are located. Wikipedia [has some information](https://en.wikipedia.org/wiki/Copyright_law_of_the_United_States#Duration_of_copyright), but you should better check your local laws.
  
  
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