On january 1, 2021, weaver corporation purchased a patent for $237,000. the remaining legal life is 20 years, but the company estimates the patent will be useful for only six more years. in january 2023, the company incurred legal fees of $57,000 in successfully defending a patent infringement suit. the successful defense did not change the company’s estimate of useful life. weaver corporation’s year-end is december 31. required: 1. record the purchase in 2021; amortization in 2021; amortization in 2022; legal fees in 2023; and amortization in 2023.