During 2018, Matsumura Ltd. spent 170,000 in research costs. As a result, a new product called the New Age Piano was patented. The patent was obtained on October 1, 2018, and had a legal life of 20 years and a useful life of 10 years. Legal costs of 24,000 related to the patent were incurred as of October 1, 2018. (Amounts are in thousands.)

Instructions

a. all journal entries required in 2018 and 2019 as a result of the transactions above.

b.On June 1, 2020, Matsumura spent 12,400 to successfully prosecute a patent infringement suit. As a result, the estimate of useful life was extended to 12 years from June 1, 2020. journal entries required in 2020 and 2021.

c.In 2022, Matsumura determined that a competitor's product would make the New Age Piano obsolete and the patent worthless by December 31, 2023. journal entries required in 2022 and 2023.