Kleen Company acquired patent rights on January 10 of Year 1 for $918,000. The patent has a useful life equal to its legal life of eight years. On January 7 of Year 4, Kleen successfully defended the patent in a lawsuit at a cost of $54,000.

	Required:
a.	Determine the patent amortization expense for Year 4 ended December 31.
b.	Journalize the adjusting entry on December 31 of Year 4 to recognize the amortization. Refer to the Chart of Accounts for exact wording of account titles.