LOURIE, Circuit Judge.
Magotteaux International S/A and Magotteaux, Inc., (together, "Magotteaux") appeal from the holding of the United States District Court for the Middle District of Tennessee on summary judgment that the asserted claims of U.S. Patent RE39,998 (the "RE'998 patent") are invalid under 35 U.S.C. § 251 for impermissibly recapturing subject matter surrendered during reissue examination. AIA Eng'g
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