The legal basis for appeals in patent reexamination proceedings is primarily found in U.S. statutes and has evolved over time. According to MPEP 2279: 1. For reexaminations filed on or after November 29, 1999, and commenced before September 16, 2012, the basis is “the version of 35 U.S.C. 141 and 35 U.S.C. 145 as they…

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