Renewal searches were done in film and artwork for the years 1959 and 1960. There were no listings for the film's title in films and no listings for Chesterfield, Invincible or Continental Litho (printed the poster) in artwork. There's no evidence of renewal for the film or its associated 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 1932 film ''The Secrets of Wu Sin''. |Source=[https://movieposters.ha.com/itm/movie-posters/mystery/the-secrets-of-wu-sin-chesterfield-1932-three-sheet-41-x-81-/a/7019-85715.s?ic3=ViewItem-Inventory-BuyNowFromO...