What copyright laws apply to the Harn material?
Copyright assures that the author, or artist, or copyright holder retains some control over their works. Each country has its own set of laws on the subject, though the Berne Convention established a standard for signatory nations (including the US). Copyright protects a published work for a certain amount of time, even if the author dies. The following guidelines may help, but are nowhere near complete. Do not assume this information is definitive! For a definitive answer about a copyright question, ask a lawyer.