A company purchased the patent on January 1, 2017, for $ 2,500,000. The legal life of the patent is 20 years, but the company estimates the useful life of the patent to be only 5 years from the date of acquisition. On June 30, 2017, the company paid legal fees of $ 135,000 for successfully defending the patent in a lawsuit for infringement (clue: useful life: 54 months). Instructions Prepare journal entries for patent amortization at the end of the year on December 31, 2017.