Personally, I feel both "limited time" and "exclusive right" need very serious reconsideration in light of:

how rapidly software can develop, and or can be lost

, and

unlike material innovations and constructs, software with many contributors ends up being greater than any one contribution, and this being true for all users, both potential and actual

, and

the need for systems, consisting of and or containing software, to interoperate, be serviced and preserved.