Irvine-based Claim Jumper Restaurants LLC on Wednesday obtained bankruptcy court approval for its sale to Houston-based Landry's Restaurants Inc. The struggling restaurant chain known for its California Gold Rush theme and large food portions filed for pre-packaged Chapter 11 bankruptcy in September and agreed to sell its restaurants and operations in an auction held last month. The auction attracted a lot of attention and more than 100 bids, according to Bloomberg LP. The chain was auctioned off to Landry's for $77 million, according to reports. The auction ends a chapter for Claim Jumper, which was acquired in 2005 by Los Angeles-based private equity firm Leonard Green & Partners LP for an estimated $220 million. It was considered the highest paid price by a private equity firm for a restaurant company.