text: RESEARCH ALERT - Unitog Co upgraded . - Barrington Research Associates Inc said Friday it upgraded Unitog Co to a near-term outperform from a long-term outperform rating . - Analyst Alexander Paris said he expected consistent 20 percent earnings growth after an estimated gain of 18 percent for 1996 . - The stock closed unchanged at 27 , down from a recent high of 30 . -- Chicago newsdesk , 312-408-8787