Skysong Industries has the following patents on its December 31, 2024, balance sheet. Patent Item Initial Cost Date Acquired Useful Life at Date Acquired Patent A $41,616 3/1/21 17 years Patent B $15,480 7/1/22 10 years Patent C $16,320 9/1/23 4 years The following events occurred during the year ended December 31, 2025. 1. Research and development costs of $234,000 were incurred during the year. Patent D was purchased on July 1 for $47,196. This patent has a useful life of 91/2 years. 2. 3. As a result of reduced demands for certain products protected by Patent B, a possible impairment of Patent B's value may have occurred at December 31, 2025. The controller for Skysong estimates the expected future cash flows from Patent B will be as follows.