What are the submission methods for inter partes reexamination correspondence?

The MPEP outlines several methods for submitting correspondence in inter partes reexamination proceedings: Electronic Filing System (EFS-Web): Registered users may submit via the electronic filing system EFS-Web, at https://efs.uspto.gov/efile/myportal/efs-registered Mail: Mail Stop Inter Partes Reexam, Attn: Central Reexamination Unit, Commissioner for Patents, United States Patent & Trademark Office, P.O. Box 1450, Alexandria, VA 22313-1450 Fax:…

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