Is there a diligence requirement for filing narrowing reissue applications?

While the MPEP 1403 generally does not impose a diligence requirement for filing reissue applications, especially within the first two years, recent court decisions have considered diligence in certain cases. The MPEP states: “While examiners should not make rejections based on lack of diligence (which does not include rejections under 35 U.S.C. 251 for a…

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