IAS 38. Intangible assets. On March 1, 2016, we obtained a patent for an amount of  7,500. At the end of the year, on December 31, 2016, the fair value of the patent was  9,000. As of December 31, 2017, the patent's fair value was  8,000. The criterion we used for valuation after the initial recognition of the asset was the revaluation model. ASK: - Make the accounting entries for the acquisition of the asset and at each accounting closing.