Can a reissue application filed before September 16, 2012, correct multiple errors in the original patent?

Yes, a reissue application filed before September 16, 2012, can correct multiple errors in the original patent. The MPEP 1414.02 states: “It is not necessary to specifically state all of the errors and imperfections being corrected in the reissue application in the reissue oath/declaration. However, it is necessary to identify in the reissue oath/declaration at…

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