DeJonge and Co. v. Breuker & Kessler Co.

DeJonge and Co. v. Breuker & Kessler Co., 235 U.S. 33 (1914), was a United States Supreme Court case in which the Court held every instance of a copyrighted work must observe copyright notice formalities for the work to maintain copyright, even if the work appears multiple times on the same sheet of paper. Every copy of a copyrighted painting must bear the notice for the painting to maintain copyright.