These are selected transactions for Indigo Corporation:
Jan. 1 Purchased a copyright for $210,000. 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 5 years and a legal life of 24 years for $71,400.
Sept.1 Purchased a small company and recorded goodwill of $152,450. Its useful life is indefinite.
Prepare all adjusting entries at December 31 to record amortization required by the events.