As the recently appointed auditor for Clinton Corporation, you have been asked to examine selected accounts before the 6-month financial statements of June 30, 2017, are prepared. The controller for Clinton Corporation mentions that only one account is kept for Intangible Assets. Intangible Assets Debit Credit Balance Jan. 6 Premium on common stock 600,000 (600,000) Feb. 2 Promotional expenses related to start-up of business 136,000 (464,000) Mar. 1 Research and development costs 1,150,000 686,000 Apr. 2 Unamortized bond premium on 20 year bonds due March 31, 2037 62,400 623,600 May 8 Legal costs to protect patent 30,000 653,600 June 30 Operating losses for first 6 months 86,000 739,600 Instructions Prepare the entry or entries necessary to correct this account. Assume that the patent has a useful life of 12 years 21 dtv A