Exercise 12B-9 (Part Level Submission) During 2013, Sheffield Corporation spent $167,040 in research and development costs. As a result, a new product called the New Age Piano was patented. The patent was obtained on October 1, 2013, and had a legal life of 20 years and a useful life of 10 years. Legal costs of $41,040 related to the patent were incurred as of October 1, 2013