What is the purpose of Form PTOL-473 in ex parte reexamination?

Form PTOL-473 is the Ex Parte Reexamination Examiner’s Answer used in ex parte reexamination proceedings. According to MPEP 2296, this form is “used as the Examiner’s Answer in ex parte reexamination.” It serves as the examiner’s response to an appeal brief filed by the patent owner or third-party requester, outlining the examiner’s position on the…

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