Patio door lock

Hello, Cindy. I'm afraid that information doesn't tell me what lock your door used. It looks like whatever it was, it was generic. I don't suppose you still have the lock on hand so we can see it? If not, can you at least tell me the size of the hole where it installs?

Thanks! We don't have a mortise with those exact dimensions, unfortunately, but we have two that come close: our 82-211 and 82-214. They both have a hole center spacing of 3-7/8", which is only 1/16" off from your given measurement. They also have a few other dimensions to consider, too, which may help you pick between them. 

Please understand that I can't guarantee that these will work for you, I just think they're worth considering, given the hole spacing in your door. Ultimately, without the original to use as a reference, there's no way for us to know with 100% certainty what went in there.