Costco takes a swing at Titleist over golf balls

The world of golf is heating up over dimples and curves.Costco is suing golf-ball maker Titleist over the right to produce its own -- and lower-priced -- golf balls. The legal dispute stems from the retailer's recent introduction of low-cost golf balls, which earned good reviews from golf sites and sold out quickly. Shortly thereafter, Titleist owner Acushnet sent the retailer a "threatening letter wrongfully accusing Costco" of violating 11 patents, according to a copy of Costco's lawsuit poste