This is for register.com, and their WhoIs seems to give the same ouput whether a domain was just purchased or expired 45 days ago. I would hate to tip off the previous owner that they should renew!
From researching the company who owned the domain I picked up, it looked like the email address they had registered was no longer active. The notifications were probably all being blackholed, LOL. It's not like they were doing anything with the domain anyway.