The Lake Superior Company has spent a total of $153,000 at the beginning of 2000 in acquiring patents for its state-of-the-art computerized air conditioners. At the beginning of 2002 the company paid legal fees of $25,000 to attorneys for representation during a patent infringement suit. The company has always expected the patents to be useful over their legal lives. As of January 1, 2003 the company receives information regarding new technology breakthroughs in computerized air-conditioning. As a result Lake Superior expects its patents to have a remaining useful life of three years. What is the amount of amortization for 2003?