While Microsoft licensed the Nokia brand under a 10-year agreement, Nokia agreed not to use its name on smartphones and to be subject to a non-compete clause preventing it from producing any mobile devices under the Nokia name through 31 December 2015. Microsoft acquired the Asha and Lumia brands as part of the deal, a license to use the Nokia name,[55] as well as the Nokia PureView, ClearBlack, Surge, Mural, and Symbian-related trademarks.[56][57] Further, the deal included the acquisition of 8,500 design-related patents by Microsoft, and license on 30,000 "utility" patents on a non-exclusive basis for 10 years.[58][59][60]