On June 30, 2019, Mobley Corporation acquired a patent for $4 million. The patent was estimated to have an eight-year life and no residual value. Mobley uses the straight-line method of amortization for intangible assets. At the beginning of January 2021, Mobley successfully defended its patent against infringement. Litigation costs totaled $650,000. Required: 1. Calculate patent amortization for 2019 and 2020. 2. Prepare the journal entry to record the 2021 litigation costs. 3. Calculate amortization for 2021. 4-a. Prepare the journal entry to record the 2021 litigation costs and calculate amortization for 2021, assuming that Mobley prepares its financial statements according to International Financial Reporting Standards (IFRS). 4-b. Calculate amortization for 2021 under IFRS. Complete this question by entering your answers in the tabs below. Reg 1 Reg 2 Reg 3 Req 4A Req 4B Calculate patent amortization for 2019 and 2020. (Enter your answers in dollars not in millions.) 2019 2020 Amortization Reg1 Req2 >