English: Original caption: "Dr. Walter Freeman, left, and Dr. James W. Watts study an X ray before a psychosurgical operation. Psychosurgery is cutting into the brain to form new patterns and rid a patient of delusions, obsessions, nervous tensions and the like.
Este archivo se encuentra en el dominio público en los Estados Unidos porque fue publicado en ese país entre los años 1929 y 1963, y, teniendo un aviso de derechos de autor, no se renovó su protección. A menos que su autor haya fallecido años antes, se mantiene bajo propiedad intelectual en los países o zonas que no aplican la regla del plazo más corto para las obras estadounidenses, como China continental (50 años p.m.a., a excepción de Hong Kong o Macao), Alemania (70), Canadá (70), Suiza (70), México (100) y otros países con reglas particulares. Vea Commons:Hirtle chart como referencia e información.
Rationale follows that of upload by User:Churn and change (non-renewal of copyright by Saturday Evening Post prior to 1950) who uploaded these files of a 1941 Saturday Evening Post article. As Churn and change stated:
I searched the US govt. copyright records renewal site (http://cocatalog.loc.gov) and found the publication "The Saturday Evening Post" had renewed its copyrights from April 1, 1950 but not before. The search was for "The Saturday Evening Post" with the "Resort results by:" field set to "(Date) ascending." I went through quite a few of the initial pages to make sure nothing was missed (the years did go up). Considering that 5104 entries were shown, the search is accurate; the publication opted not to renew copyrights prior to 1950, and so they are now in the public domain.
The same holds true for this file.
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