"The U.S. Patent Office has rejected two Microsoft patents over the FAT file format, but the software maker said Wednesday that it's not ready to give up its battle to protect its widely used method for storing data.
"The patent office delivered its ruling late last month but made it public this week. With one of the patents, the decision is what's considered a final rejection, while with another it's considered nonfinal. In both cases, Microsoft has the ability to pursue its claims further..."
