Nice shoes, are they Christian Louboutins or YSL knockoffs?

The red bottoms of Christian Louboutin shoes make each pair instantly recognizable; Christian Louboutin filed a lawsuit against Yves Saint Laurent for trademark infringement when the brand’s 2011 shoe collection featured shoes with red bottoms. Louboutin claims that the shoes are virtually identical and are likely to confuse consumers.  Despite the fact that the USPTO…