Lawyers for the former RadioShack Corp. have asked a bankruptcy judge to throw out a lawsuit brought by the Texas attorney general over the retailer's unredeemed gift cards, Dow Jones Daily Bankruptcy Review reported today. In court papers filed on Monday, the former RadioShack said that the rights of its gift-card holders are fully protected under a liquidation plan it hopes to present for court approval in August. Under that plan, gift-card holders may file special claims for their unused cards. However, their requests for repayment are subject to a deadline, and bankruptcy laws cap their claims at $2,775 each.