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.
Screenshot from Boom Boom, a 1936 Warner Bros. cartoon. {{PD-US-not renewed}} For details, check the link below: [http://looney.goldenagecartoons.com/DVDvideo/PD/ Golden Age Cartoons]
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