They did from Apple. Despite the lore of Steve Jobs "stealing" everything from P...

jackgavigan · on Feb 17, 2014

SRI, not Xerox, were the assignee on the original patent for the mouse: http://www.google.com/patents/US3541541

PS: "SRI licensed the computer mouse technology to Apple, Xerox, and other companies. The mouse became commercially viable in 1984, three years before the patent's expiration." - http://www.sri.com/work/timeline-innovation/timeline.php?tim...