Springer Company had three intangible assets at the end of 2017 (end of the accounting year): a. A copyright purchased on January 1, 2017, for a cash cost of $16,400. The copyright is expected to have a 10-year useful life to Springer. b. Goodwill of $84,000 from the purchase of the Hartford Company on July 1, 2016. c. A patent purchased on January 1, 2016, for $70,000. The inventor had registered the patent with the U. S. Patent Office on January 1, 2012.