620 RD

620 RD (also stylized as 620 RD.) is a 1969 American experimental/independent film directed by Kenneth Grosz. Under the 1909 Copyright Act, works published between 1964 and 1977 received an initial 28-year term of protection, with renewal being automatic after the 1992 Amendment. However, the work still required a valid copyright notice on all publicly distributed copies and/or a federal registration at the time of publication to secure federal protection. A search of the Library of Congress Catalog of Copyright Entries (CCE) and the online Copyright Office records shows no registration for a motion picture titled '620 RD'. Furthermore, the film is widely documented in experimental film circles as having been released without a formal copyright notice. The film appears in the catalogs of several public domain aggregators and has been uploaded to the Internet Archive's 'Public Domain Movies' collection without any record of a DMCA takedown or proprietary claim by Grosz-Lytton or successors. Given the lack of registration and the failure to comply with notice formalities during the 1964-1977 window, the film likely never secured federal copyright protection or fell into the public domain upon publication.