The intangible assets section of Pina Corporation's balance sheet at December 31, 2022, is presented here. $65,970 Patents ($73,300 cost less $7,330 amortization) Copyrights ($57.000 cost less $39,900 amortization) Total 17,100 $83,070 The patent was acquired in January 2022 and has a useful life of 10 years. The copyright was acquired in January 2016 and also has a useful life of 10 years. The following cash transactions may have affected intangible assets during 2023. Jan. 2 Jan- June Paid $54,000 legal costs to successfully defend the patent against infringement by another company. Developed a new product, incurring S241,500 in research and development costs. A patent was granted for the product on July 1, and its useful life is equal to its legal life. Legal and other costs for the patent were $20,000 Paid $68,000 to a quarterback to appear in commercials advertising the company's products. The commercials will air in September and October Acquired a copyright for $275,000. The copyright has a useful life and legal life of 50 years. Sept. 1 Oct. 1 Prepare journal entries to record the 2023 amortization expense for intangible assets. (Credit account titles are automatically indented when amount is entered. Do not indent manually. If no entry is required, select "No Entry for the account titles and enter O for the amounts.) Date Account Titles and Explanation Debit Credit Dec. 31 (To record amortization of patents) Dec. 31 (To record amortization of copyrights)