02. American Gothic, copyright renewal record, 1980
Grant Wood's American Gothic was first published in 1930 but fell into the public domain in the United States in 1958. Wood's estate filed a renewal application in 1980, more than two decades after the one-year renewal window had closed at the end of 1958, but it was too late, so the painting remained in the public domain.

United States Copyright Office, Copyright Catalog. http://www.copyright.gov

"Copyright Law: Publishing Artwork and the Public Domain," Case 4, Ryerson & Burnham Libraries, April 15-June 10, 2009