Dewey, an employee of american stair glide, had a novel idea for a safety device for elevator chairs manufactured by american. Dewey on his own time made a drawing and model of his idea and showed it to officials of american. later, American used the safety device therby saving money. American refused to pay dewey anything, claiming it had no contrat with Dewey. american also proved that dewy was not employed by american to any engineering or design concept work. Dewey claimed that American was unustly enriched by his diea. Can dewey recover using the theory of quasi-contract? explain.