In the current proceeding, the underlying district court complaints were filed on December 30, 2013. Patent Owner represents that "Petitioners were each served with the complaints and summonses on January 16, 2014." Mot. 1. The Petition in this proceeding was filed on December 31, 2014, and accorded a filing date of December 31, 2014. Papers 1, 6. Patent Owner’s Preliminary Response is due on April 29, 2015.