I have a couple of questions.
Let's say the put the cat's bed in the chamber so that it will be comfortable during the experiment.
Suppose, too, that the chamber is large enough for the cat to walk around in. Let's say the cat's bed is about 3 feet away from the door of the chamber.
If the hydrocyanic acid is released, you obviously don't want to be sticking your head into the chamber to see if the cat is alive or dead, so say you stand off to the side of it, open the door remotely, and wait to see if the cat walks out.
You run the experiment. After an hour, you push the button to open the door. You wait about 3 seconds, and then you see the cat walk out of the chamber.
At what point did the cat become alive? Was it when the door opened and the cat had the potential to be observed? If so, then isn't it the door--part of the chamber itself--that caused the cat's quantum states to collapse into being alive rather than the observation? Or was it when you first saw the cat walk out of the chamber, 3 seconds later? If that's the case, then how did the cat get from it's bed to the door if it was neither alive nor dead?