Few statements in the law are so absolutely true. See footnote 6 for its text. That clause leaves little question about Congressional capacity to preempt state copyright power. See footnote 6. Continue I hope that you recognized the statement as false.
Federal courts are unlikely to ignore such a great body of prior experience.
Thus, the law of states such as New York and California are apt to play a major role in developing the federal law governing rights in unpublished works. Continue As discussed at footnote 197, publication with notice was generally very important under the 1909 Act. However, upon publication, federal law applied exclusively. If a work was published without notice, it went into the public domain. See the discussion at footnotes 150-52.