Intangible Assets Jan. 4 Research and development costs Legal costs to obtain patent 75,120 Payment of 7 months' rent on property leased by Riverbed 93,100 1,111,220 Feb. 11 Premium on common stock 243,000868,220 March 31 Unamortized bond discount on bonds due March 31, 2040 115,200 983,420 April 30 Promotional expenses related to start-up of business 231,000 1,214,420 June 30 Operating losses for first 6 months 242,500 1,456,920 Prepare the entries necessary to correct this account. Assume that the patent has a useful life of 10 years. (Credit account titles are automatically indented when amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the account titles and enter O for the amounts.) Intangible Assets To correct the account) Amortization Expense Patents To record amortiztion expense)