4. Information below relates to Helmut's Wurst capital assets. Ensure you consider item#4 below regarding repairs and maintenance before preparing any capital asset computations. Date of purchase Depreciation method Special notes Machinery January 1, 2013 Double declining Est. useful life 8 years Residual value of $10,000 Furniture & January 1, 2014 Straight line As of January 1 2017, Fixtures Est. useful life 10 years Helmut believes the Residual value of Furniture & Fixtures $5,000 have a remaining useful life of 5 years Computers & April 1, 2017 Double declining printers Est. useful life 5 years 5. Due to growing and fierce competition in the industry, on February 1, 2017 Helmut decided to patent his eight wurst recipes. He capitalized the registration costs for the patent. In Canada patents have a legal life of 20 years