Canadian coffee and doughnut chain Tim Hortons Inc. estimates it will offer 29-million shares in a price range of $18 to $20 (U.S.) per share in its upcoming initial public offering. Wendy’s, based in Dublin, Ohio, will continue to own about 85 per cent, or around 160-million shares, of Tim Hortons’ common stock after the IPO, according to a filing Monday with the Securities and Exchange Commission. Wendy’s stake could be reduced to…(att.1)