Federal Circuit -- DEERE & CO. V. BUSH HOG, LLC.

Where jury might have found that a slight spacer between pieces of the construction allowed the pieces to engage with each other, the court inappropriately invoked the doctrine of vitiation to rule on a claim that the two pieces did not engage.

The lower cutting deck was not necessarily substantially planar, or something along those lines.


DEERE & CO. V. BUSH HOG, LLC.