The following are selected 2022 transactions of Sheffield Corporation. Jan. 1 Purchased a small company and recorded goodwill of $225,000. Its useful life is indefinite. April 1 Purchased for $136,000 a patent with an estimated useful life of 5 years and a legal life of 20 years. (a) Your Answer Correct Answer Your answer is correct. Prepare necessary adjusting entries at December 31 to record amortization required by the events above. (Credit account titles automatically indented when the amount is entered. Do not Indent manually List all debit entries before credit entries) Date Account Titles and Explanation Dec. 31 Amortization Expense Patents Debit 20400 Credit 20400