These are selected 2017 transactions for Wyle Corporation Jan 1 Purchased a copyright for $120,000 The copyright has a useful life of 6 years and a remaining legal life of 30 years Mar 1 Purchased a patent with an estimated useful life of 4 years and a legal life of 20 years for $54,000 Sept 1 Purchased a small company and recorded goodwill of $150,000 Its useful life is indefinite Indicate the amount of amortization expense on December 31, 2017, for Wyle Corporation