(April 15, 2016, 11:05 AM EDT) -- ST. PAUL, Minn. — Parties in a securities class action lawsuit recently asked the Eighth Circuit U.S. Court of Appeals to determine whether a federal district court erred in dismissing a consolidated amended complaint as untimely filed (West Virginia Pipe Trades Health & Welfare Fund, et al. v. Medtronic Inc., et al., No. 15-3468, 8th Cir.)....