(April 1, 2020, 12:38 PM EDT) -- PHILADELPHIA — An insurer recently asked the Third Circuit U.S. Court of Appeals to reverse a district court ruling that found that it had a duty to defend its insured in an underlying lawsuit. The insurer maintains that the underlying complaint contained no factual allegations of negligence and there was no occurrence (Westminster American Insurance Company v. Spruce 1530 LLC, No. 19-2207, 3rd Cir.)....