BlackBerry Ltd said on Monday it will sell its legacy patents primarily related to mobile devices, messaging and wireless networking for $600 million to a special purpose vehicle formed to acquire the company"s patent assets. BlackBerry said the transaction with the vehicle, Catapult IP Innovations Inc, will not impact customers" use of its products or services. The move comes weeks after BlackBerry pulled the plug on service for its once ubiquitous business smartphones, which were toted by executives, politicians and legions of fans in the early 2000s.