A federal jury in Chicago slapped the maker of Shark vacuums with a $16.4 million verdict for lying about rival vacuum maker Dyson’s products.The jury Monday concluded SharkNinja Operating LLC intentionally engaged in false advertising by claiming independent tests showed its Shark Rotator Powered Lift-Away cleans carpets better than Dyson Inc.’s best machine.The ads appeared on television, in print and on the product’s box during the 2014 holiday season.The jury awarded Dyson $16,410,681 in profits it …