Does copyright transfer of papers to publishers affect when the paper enters the public domain?

academia.stackexchange.com/questions/213576/do-copyright-transfer-of-papers-to-publishers-affect-when-the-paper-enters-the-p Do copyright transfer of papers to publishers affect when the paper enters the public domain since copyright belongs to a corporation and not persons?

I'm asking a law question for a change, because I enjoy skimming through important old papers and uploading parts of them where everyone can legally enjoy them.

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