On January 2, 2018, David Corporation purchased a patent for $600,000. The remaining legal life is 12 years, but the company estimated that the patent will be useful only for eight years. In January 2020, the company incurred legal fees of $60,000 in successfully defending a patent infringement suit. The successful defense did not change the companys estimate of useful life.

Required: Prepare journal entries related to the patent for 2018, 2019, and 2020. (If no entry is required for a transaction/event, select "No journal entry required" in the first account field.) View transaction list X Import a new list Record the purchase of the patent. 1 2 Record amortization of the patent for the year 2018. Record amortization of the patent for the year 2019. 3 4 Record costs of successfully defending the patent infringement suit. Credit 5 Record amortization of the patent for the year 2020