Mystery lock replacement needed

The only lock that this one might be close enough to is your 82-265. A big orange home improvement store told me I would have to order something through Andersen. I did,.... it was to fat to fit inside the door and the latches weren't far enough apart. There are no markings or stickers on the door to identify it. The only markings on this lock is "PatPend". Any help in the right direction is much appreciated. Also, when our door was installed years ago, the lock assembly from the outside didnt come with any keys, and/or it was put in for show to make us think we had all the parts installed correctly. There were many pieces left over that I was told to ignore and that I didnt need to worry about. Now, Im the one left searching for a lock to replace the broken one and no one seems to know where to get it. Again, much help is appreciated with this venture.!!

Wonderful! Thank you for the reply. Here are additional photos of both inside and outside of the handle. I have been doing more research, and I think the door may be an American Craftsman brand, but not 100% sure. Thank you again.