A search for renewals was done in film and artwork for the years 1964 and 1965. There were no listings for the film's title in motion pictures or for the title or RKO in artwork. There's no evidence of continuing copyright on the film or its materials.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.
{{Information |Description=Poster for the 1937 film ''Border Cafe''. |Source=[http://www.westernmovies.fr/image/2014/1154/bordercafeposter.jpg source] |Date=[http://www.imdb.com/title/tt0028648/ 1937] |Author=Copyright RKO |Permission=Copyright not ren...