The women sued Costco in 2004, accusing the largest U.S. warehouse-club chain of limiting promotions of female employees to assistant general manager and general manager by failing to post such job openings. They won the right to sue as a group in a class action in 2007. Costco’s appeal of that order was put on hold while the Supreme Court considered Dukes v. Wal-Mart. Parts of the Costco decision conflict with the Supreme Court’s June 20 ruling barring women suing Wal-Mart from pursuing their claims in a nationwide class action, according to legal experts...[A] professor at Boston University School of Law, predicted the U.S. Court of Appeals...will send the Costco case back to the trial judge for reconsideration.