Impaired Goodwik and Amortitstion of Petent: On December 31, it was estimated that goodwill of 51,600,000 was impaired. In addition, a putent with an estimated usefud economic life of 15 vears was acquired for $594,000 on August 1. Impaired Goodwik and Amortitstion of Petent: On December 31, it was estimated that goodwill of 51,600,000 was impaired. In addition, a putent with an estimated usefud economic life of 15 vears was acquired for $594,000 on August 1