A panel of two High Court judges ruled Friday against a petition for government payment of legal costs to the widow of one of the four suicide bombers who killed 52 people and themselves in attacks on London’s transit system in July 2005. The widow, Hasina Patel, had appealed a lower court order in May backing a government decision to hold separate inquests into the deaths of the four bombers and their victims, and to deny relatives of the bombers access to the government legal aid that will be available to the victims’ relatives. Ms. Patel, widow of Mohammed Siddique Khan, identified by investigations as the ringleader of the 2005 attacks, has since remarried.