Once the choice was made, Davidson asked for more time in order to refine the work she had done on the Swoosh; however, Knight stated that the company had production deadlines to meet and needed the logo as soon as possible. For her services, the company paid her $35 ($206 in 2015 dollars), citing that she worked 17.5 hours on creating the Swoosh, although Davidson said that she is certain she worked more hours on the design. The Swoosh was officially trademarked on June 18, 1971 and in June 1972, at the U.S. Track and Field Olympic Trials in Eugene, Oregon, Nike's first official track shoe, the Nike Cortez, was released to the athletes sporting the fresh new Swoosh.