• July 24, 2007

Charging that it copied its famous pocket-stitching design, Levi Strauss & Co. has taken Polo Ralph Lauren Corp. to court, reports Women's Wear Daily.

Levi's said in federal court documents that the stitching has been legally protected since 1873 and is the oldest known apparel trademark in the country.

Polo Ralph Lauren "has in the past and continues to manufacture, source, market and/or sell clothing that displays stitching designs that are confusingly similar " to Levi's trademark, the suit claims.

Levi's is seeking compensation for unspecified losses in profits and other damages, as well as a court injunction. Polo Ralph Lauren has 30 days to respond.--Sarah Mahoney