lamento decir que la ley no es así.. copio
de wikipedia:
Cita: There is no recognition of a legal term "abandonware" in copyright law. (...) Currently, a copyright can be released into the public domain if the owner clearly does so in writing; however this formal process is not considered "abandoning," rather "releasing." Non-owners of a copyright cannot merely claim the copyright "abandoned" and start using it without permission of the copyright holder, who would then have a legal remedy.
y sigue un poco más abajo:
Proponents of abandonware argue that it is more ethical to make copies of such software than new software that still sells. Some who are ignorant of copyright law have incorrectly taken this to mean that abandonware is legal to distribute, although no software is old enough for its copyrights to have expired. Even in cases where the original company no longer exists, the rights usually still belong to someone else, though no one may actually know who actually owns the rights, including the owner themselves.
EDITO
Vanchi, choque con tu ultimo mensaje
.. de todas formas, lo que tu copias es sobre LAS PATENTES, nada que ver a los programas informáticos..