. Cao incurred $115,000 of experimental and development costs in its laboratory to develop a patent that was granted on July 1, 2020. Legal fees and other costs during 2020 associated with registration of the patent totaled $27,000. Expenditures for successful litigation in defense of the patent totaling $8,700 were paid on November 1, 2020. Cao estimates that the useful life of the patent will be 10 years. What is the total amortization expense for the patent in 2020? (Show schedule)