keeveek: Nope. You can abandon only movable objects, not rights.
Nope, you can also abandon real estate, which is not movable object (zasiedzenie nieruchomości).
Plus, you forgot that you abandon movable objects and thus you abandon your rights to that object (prawo własności), so technically, it's the same. The only difference is that with IP rights it's not visible that you abandoned those rights, while when you abandon movable objects (or real estates) it's visible to everyone.
Presumption that somebody has abandoned his IP , because he's not selling it anymore is unacceptable.
It's acceptable by society (hence abandonwarez sites which got almost no negative opinions, contrary to warez sites).
And it's easy to do. The law should specify that the period of 70 (or 75 in Germany) years in which IP is protected applies only to the IP which is available for a consumer to buy. If IP holder fails to provide his good, consumer is entitled to download or make a copy of that good.
Can I distribute your old emails from your email box , because you don't use it anymore?
No, but because of privacy of my emails, and because they were not released to a publicity. I'm only speaking of goods (music/books/movies/games) which were released, but they are not avaiable to buy anymore. If something wasn't released at all, noone has rights to make a copy/download.
And your emails. And your poem written to that hot chick from senior class.
As I said, my emails are protected by my right to privacy, and my poem wasn't released, so it cannot be copied.
I wrote my thesis about copyright law, and I'm talking about different part of copyright law than you, and you don't see it.