If you change an item that is not public domain, is the design now yours? Why?

YES, the design of the change item that is not public domain will be mine because I modified it.

Explanation:

Yes , In a situation where I change the item that are NOT public domain the design of the change item will be mine reason been that I am the one that the change the item or modified it .

Therefore PUBLIC DOMAIN can simply be defined as the domain in which every individual or the general public have the right to use without any form of restriction reason been that their is NO any form of property law or restriction law governing them .

This form of restriction law include the following TRADEMARK, COPYRIGHT AND PATENTS LAW.

Therefore despite the public domain is for public use NO individual can own the PUBLIC DOMAIN.