http://www.txed.uscourts.gov/page1.shtml?location=info:division&division=marshall September 10, 2012 *Claim Construction Hearing – 9:00 a.m. in Marshall, Texas IN THE UNITED STATES DISTRICT COURT FOR THE EASTERN DISTRICT OF TEXAS MARSHALL DIVISION CALYPSO WIRELESS, INC. v. T-MOBILE USA INC. Case No. 2:08-CV-441-JRG-RSP