The guessing game among retail experts this week is how much Target Corp. paid to Canadian retailer Fairweathers for the exclusive use of the Target name in Canada. Fairweather more or less set a price when it launched a $250 million lawsuit against Target. Fairweather owned name in Canada and although its use of it on relatively few stores may have made the settlement easier for the American firm. In other words, Fairweather didn’t have too much tied up in the Target name. Target announced Wednesday it had reached an agreement with Fairweather, and its sister firms, International Clothiers Inc. and Les Ailes de la Mode Incorporées, that requires the Canadian retailer to stop using the Target mark by Jan. 2013. But no details about money were released.