was the book accused of plagiarism for using any other published material?
No, but "Jesus–A New Revelation" included 76 of the 196 papers included in "The Urantia Book".
The Urantia Book
Four years later, in 1999, Harry McMullan III and the Michael Foundation published a book, "Jesus–A New Revelation", which included verbatim 76 of the 196 papers included in "The Urantia Book". McMullan and the Michael Foundation subsequently sought a legal declaration that the Urantia Foundation's US copyright in "The Urantia Book" was either invalid or, alternatively, that the copyright had not been infringed upon. Urantia Foundation's copyright was held to have expired in 1983 because the book was deemed to have been neither a composite work nor a commissioned work for hire. These two arguments having been rejected, a U.S. court held that, since the Conduit had died prior to 1983, only the Conduit's heirs would have been eligible to renew the copyright in 1983 and, since they had not done so, the Urantia Foundation's copyright on the book had expired and the book had therefore passed into the public domain. This decision was upheld on appeal.
who is william s. sadler? He was an American surgeon, self-trained psychiatrist, and author. where did he get his surgeon degree? UNANSWERABLE is he alive? No, he died in 1969 did he write any books? Yes, "The Urantia Book" what's the book about? It introduced the word "Urantia" as the name of planet Earth - its intent is to "present enlarged concepts and advanced truth." what cosmological views does the book impart? That the center of the cosmos is the Isle of Paradise where God lives, and it is surrounded by "Havona". does the book have any copyright issues? In 1991 Kristen Maaherra was sued by the Urantia Foundation for violating their copyright on the book.
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The Urantia Book [SEP] Copyright status
In 1991, after having compiled an index of "The Urantia Book" and distributed free copies via computer disk and printouts, Kristen Maaherra was sued by the Urantia Foundation for violating their copyright on the book. In 1995, Maaherra won a Summary Judgment declaring the Urantia Foundation's copyright renewal invalid. Upon appeal, the judgment was reversed and awarded to the Urantia Foundation. Four years later, in 1999, Harry McMullan III and the Michael Foundation published a book, "Jesus–A New Revelation", which included verbatim 76 of the 196 papers included in "The Urantia Book". McMullan and the Michael Foundation subsequently sought a legal declaration that the Urantia Foundation's US copyright in "The Urantia Book" was either invalid or, alternatively, that the copyright had not been infringed upon.