Mealey's (January 14, 2016, 11:35 AM EST) -- PHILADELPHIA — Oral arguments before the Third Circuit U.S. Court of Appeals are set for Jan. 20 in a lawsuit against one of the largest commercial cleaning franchisors (Darryl Williams, et al. v. Jani-King of Philadelphia, et al., No. 15-2049, 3rd Cir.)....