Any chance to ID for replacement ?

(Connecticut)

Been living in this house for 5 years now, never found a great solution until recently, I started looking up how to replace this lock.. The latch doesn't stay up when we slide it up to lock.

The hole looks nothing like anything I've been able to find. Help? Thanks!

That is what I call an inset style of patio door lock. I have them. You need to check if the center to center distance is 6-1/2" see this page

Inset style patio door lock

There are also two different thickness to look for see the dimensions I show on the page above