A company purchased a patent on January 1, 2018, for $2,500,000. The patent's legal life is 20

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A company purchased a patent on January 1, 2018, for $2,500,000. The patent's legal life is 20 years but the company estimates that the patent's useful life will only be 5 years from the date of acquisition. On June 30, 2018, the company paid legal costs of $135,000 in successfully defending the patent in an infringement suit.

Prepare the journal entry to amortize the patent at year end on December 31, 2018.