Ralston Purina Co. was ordered by a U.S. District Court judge here to stop running ads from TBWA/Chiat/Day
, New York, comparing the performance of its Energizer Advance Formula battery against rival Duracell Ultra. Gillette filed suit May 10, claiming the ads violated federal laws against unfair competition and false advertising. The ad was based on a article that rated batteries' performance in Popular Electronics'
January issue. Ralston Purina said through a statement it is considering an appeal.
Copyright May 1999, Crain Communications Inc.