As reported in Oblon Spivak’s Patents Post-Grant blog, the U.S. Court of Appeals for the Federal Circuit affirmed the patentability of Bank of America Corp.’s design patent for a miniature credit card, agreeing that a patent examiner erred in initially rejecting the patent claim as obvious.  The decision was made without explanation. 

A discussion of the inter partes reexamination that led to the Federal Circuit appeal can be found here.