These are selected 2017 transactions for Novak Corporation:

Jan. 1		Purchased a copyright for $93,600. The copyright has a useful life of 6 years and a remaining legal life of 35 years.
Mar. 1		Purchased a patent with an estimated useful life of 5 years and a legal life of 25 years for $85,200.
Sept. 1		Purchased a small company and recorded goodwill of $151,550. Its useful life is indefinite.

Indicate the amount of amortization expense on December 31, 2017, for Novak Corporation