Block user from editing submission through frontend with option or after specific time

Hi

It would be great if it's possible to block the user from editing his submission with an option in the backend. Maybe with a date until which edition is possible and after it, the open submissions are closed automatically...

My use case are users which can send orders and are able to change them until I close the orders. Let's say the users have two weeks time to place they're orders and after this time they're able to view the order but not to edit it.