Swifty Technologies holds a valuable patent (No. 782) for Dance-o-matic, an electronic system that provides individualized, interactive dance instruction that also provides real-time feedback. Swifty does not manufacture or sell the products and processes it develops. Instead, it conducts research and develops products and processes which it patents, and then assigns the patents to manufacturers on a royalty basis. Occasionally it sells a patent. The history of Swifty's patent number 782 is as follows. Date Activity Cost 2011-2012 $537,000 Oct 2013 208,000 Feb 2014 65,500 Aug 2014 50,400 Research conducted to develop Dance-o-matic Design and construction of prototype Testing of models Costs (engineering and legal fees) associated with patent application; patent granted September 30, 2014 Engineering activity to advance the prototype to the manufacturing stage Legal fees paid in unsuccessful attempt to broaden the patent's coverage Research and development activity to advance the Mar 2015 260,000 July 2016 22,900 Oct 2018 real-time feedback component 162,000 Jan 2021 Legal fees paid to successfully defend the patent against a competitor 20,400 Swifty assumed a useful life of 14 years when it received the initial patent. On January 1, 2019, it revised its useful life estimate downward to 6 remaining years. Amortization is computed for a full year if the cost is incurred prior to July 1, and no amortization for the year if the cost is incurred after June 30. The company's year ends December 31. Compute the carrying value of patent No. 782 on each of the following dates: (a) December 31, 2014 $ (b) December 31, 2018 $ (c) December 31, 2021 $