Larkspur Limited purchased a patent for $89,000 on June 1, 2015 Larkspur has a calendar fiscal year end Straightline amortization is used for the patent, based on a fiveyear useful life, although the remaining legal life was 10 years On May 31, 2017, Larkspur paid $31,200 in legal fees to successfully defend this patent in court and now wants to revise the estimate of the patents remaining useful life to 8 years, which is the same as its remaining legal life