Is there a George Forman style contact grill with a timer that turns
off the grill when the timer ends so it is no longer cooking ? So the
food will not continue to cook and possibly burn if forgotten about ?
The timers on the George Forman ones I've seen simply beep when the
time ends and continue cooking.

I've seen Hamilton Beach models with mechanical timers that stop
cooking, but their grills do not have floating hinges and their
searing-ribs are tall at one end of the grill.