It's definitely the final nail in it's widespread use but it was used somewhat up to the end of WW2 though that focused on anti-kamikaze painting in the Pacific

It's definitely the final nail in it's widespread use but it was used somewhat up to the end of WW2 though that focused on anti-kamikaze painting in the Pacific theater. Japan was several years behind the rest of the world on radar so it stuck around longer in the Pacific too before that transition to anti-kamikaze but even there by the end of the war Japan was using radar fire-control.