Just shows how much knowledge you have on the point you are trying to argue against.
Under Copyright prevention laws nothing needs to have "Copyrighted by blah blah [date] - [date]" on it to be Copyrighted or have to go through any legal procedure to be Copyrighted, the right to copy is to the person(s) who originally created it. People usually put "Copyrighted" to strengthen it but it is not legally needed.
That is different from a patent or a trademark btw, which i'm sure would need it.








).
.

