Does Property That Was Loaned To Me Ever Become Mine If The Owner Does Not Reply To My Attempts To Return It?

Someone loaned me a computer a few years ago for a project I needed it for, and I tried to return it to this person upon completing said project, but they never replied to my contact initiating a return. It was never explicitly stated it was a gift, though they told me it was an old device that I was welcome to delete whatever data of their was on it for the purposes of my use. I have tried to contact them repeatedly over the years to return it, but they do not reply to my communication (I know that their phone number is still active and current). Is there a point at which it is legally considered abandoned and becomes my property? (Chicago, IL)