הסיבה שניתנה היא:Mighty Mouse's original cartoon, Mouse of Tomorrow, is still under copyright as seen here. This means the character is still copyrighted until 2038.
{{subst:delete2|image=Files in Category:PD Cartoon - Mighty Mouse|reason=Mighty Mouse's original cartoon, Mouse of Tomorrow, is still under copyright as seen here. This means the character is still copyrighted until 2038. --~~~~}}
This work is in the public domain because it was published in the United States between 1929 and 1963, and although there may or may not have been a copyright notice, the copyright was not renewed. For further explanation, see Commons:Hirtle chart and the copyright renewal logs. 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.
יצירה זו (או חלקיה) כוללת חומרים אשר עלולים להיחשב כסימן מסחר בחלק מתחומי השיפוט. לפני שתשתמשו ביצירה זו, אנא ודאו כי בידכם הרשות החוקית לעשות זאת בהתאם לנסיבות השימוש. שימו לב כי הנכם אחראיים באופן אישי על כך שאינכם מפרים סימן מסחר של מישהו אחר. ראו גם הבהרה משפטית.
Still frame from the animated cartoon "Wolf! Wolf!" (1945). The film has fallen into the public domain, as its copyright has expired. [http://www.archive.org/details/mighty_mouse_wolf_wolf]