During 2013, Cheyenne Corporation spent $149,760 in research and development costs. As a result, a new product called the New Age Piano was patented. The patent was obtained on October 1, 2013, and had a legal life of 20 years and a useful life of 10 years. Legal costs of $23,760 related to the patent were incurred as of October 1, 2013.

Prepare all journal entries required in 2013 and 2014 as a result of the transactions above.

Accounts Payable Accounts Receivable Advertising Expense Amortization Expense Buildings Cash Computer Software Costs Copyrights Discount on Bonds Payable Equipment Franchises Goodwill Income Summary Intangible Assets Interest Expense Inventory Land Legal Fees Expense Loss on Impairment Long-term Notes Payable No Entry Notes Payable Organization Expense Paid-in Capital in Excess of Par - Common Stock Patents Patent Expense Prepaid Rent Recovery of Loss from Impairment Rent Expense Rent Receivable Rent Revenue Research and Development Expense Retained Earnings Trade Names Trademarks

2013 (o record research and development expenses) 2013 To record legal expenses) 2013 ITo record amortization expense) 2014 On June 1, 2015, Cheyenne spent $14400 to successfully proseate a patent infringement suit, As a result, the estimate of useful life was extended to 12 years from June 1, 2015. Prepare alljournal entries required in 2015 and 2016, (To record patents) To record amortization expense) 2016 In 2017, Cheyenne determined that a competitor's product would make the New Age Pano obsolete and the patent worthless by December 31, 2018. Prepare all journal entries required in 2017 and 2018, Account Titles and Explanation