Capital and Revenue Expenditures On April 29, Welllington Co. paid $2,440 to install a hydraulic lift and $55 for an air filter for one of its delivery trucks. Journalize the entry for the new lift. If an amount box does not require an entry, leave it blank. April 29 Journalize the entry for air filter expenditures. If an amount box does not require an entry, leave it blank. April 29 Impaired Goodwill and Amortization of Patent On December 31, it was estimated that goodvill of $6,100,000 was impaired. In addition, a patent with an estimated useful economic life of 12 years was acquired for $1,152,000 on April 1 . a. Journalize the adjusting entry on December 31 for the impaired goodwill. If an amount box does not require an entry, leave it blank. Dec. 31 b. Journalize the adjusting entry on December 31 for the amortization of the patent rights. Do not round intermediate calculations. If an amount box does not require an entry, leave it blank