This is why -
Now a Los Angeles appeals court has rescinded the $2.2 million damages ruling altogether and sent the case back to the district court for a new decision to be taken on the '709 patent after it admitted the district court had made a mistake in its post-trial ruling.
Therefore, it appears that the case still has some way to go, with the district court now charged with determining the validity of the '709 patent and re-evaluating the level of damages to be awarded.
With each party having to bear the legal costs of the appeal, that is sure to hurt the manufacturer more than the Staples.