The indetermancy of the micro (quantum) world and the determancy of the macro world are supposed to meet in this experiment, with that of the micro world imposing itself on the macro world (the cat).

The Copenhagen interpretation states that the act of measuring something causes the Schrödinger wave function to collapse. In reality, the act of measurement takes place by the Geiger counter.

By the time we come to the cat, the measurement has already been made - measurements have been made - by the atoms of the Geiger counter, the vial-breaking apparatus, the vial, the poison gas, and the cat itself. So the cat is not in quantum limbo.