How do double patenting principles apply to reexamination proceedings?

Basic principles of double patenting do apply to reexamination proceedings. The MPEP states: “Basic principles of double patenting apply to reexamination proceedings, as explained in this chapter and in MPEP Chapters 2200 and 2600 (see especially MPEP § 2258).” This means that during a reexamination, examiners should consider double patenting issues. For detailed guidance on…

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