Sherlock Holmes stories are interesting. The last ones were published in 1929 IIRC. So there are still some under copyright, and so Doyle's literary estate is still claiming some rights.
Mid 20th Century, the term was 28 years with a 28 year extension.
Let's see, 56 years ago is 1966, so a whole lotta goodies would be public domain under that regime.
Now it's life of author plus 70 years. So a 22 year old writes a book, lives to 92, then another 70 years. So it's in copyright for 140 years. That seems like a long time.
Mid 20th Century, the term was 28 years with a 28 year extension.
Let's see, 56 years ago is 1966, so a whole lotta goodies would be public domain under that regime.
Now it's life of author plus 70 years. So a 22 year old writes a book, lives to 92, then another 70 years. So it's in copyright for 140 years. That seems like a long time.