#4 does not mean New York State owns it forever. It is intended to prevent companies from having an incentive to create business practices based on the hope that people will forget about or abandon funds etc. A customer can claim those funds by going here:

https://www.osc.state.ny.us/ouf/

Your comment is kind of what I'm talking about. You do not know nearly enough about this stuff to start a Bitcoin startup judging by the fact that you don't even know what unclaimed property is. Therefore I hope regulations like this prevent you and other obviously unqualified people from handling other peoples money.

EDIT: I came out a bit harsh on this and I apologize. I intended to use it as an example of you likely having the technical ability for such a project but not the financial knowledge, which in my opinion is the dangerous situation these regulations will hopefully prevent.