14. ( 3 points) Pronghorn Corporation purchases a patent from Crane Company on January 1, 2017, for $300,000. The patent has a remaining legal life of 18 years. Pronghorn feels the patent will be useful for 15 years. Prepare Pronghorn's journal entries to record the purchase of the patent and 2017 amortization. 15. (3 points) On September 1, 2017, Sheffield Corporation acquired Aumont Enterprises for a cash payment of $1,000,000. At the time of purchase, Aumont's balance sheet showed assets of $580,000, liabilities of $230,000, and owners' equity of $350,000. The fair value of Aumont's assets is estimated to be $1,000,000. Compute the amount of goodwill acquired by Sheffield. 16. ( 2 points) Martinez Corporation owns a patent that has a carrying amount of $320,000. Martinez expects future net cash flows from this patent to total $260,000. The fair value of the patent is $230,000. Prepare Martinez's journal entry to record the loss on impairment (if necessary)