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, thereby saving money. American refused to pay Dewey anything, claiming it had no contract with Dewey. American also proved that Dewey was not employed by American to any engineering or design concept work. Dewey claimed that American was unjustly enriched by his idea. Can Dewey recover using the theory of quasi-contract