C.F.R. » Title 37 » CHAPTER I—UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE › SUBCHAPTER A—GENERAL › PART 1—RULES OF PRACTICE IN PATENT CASES › Subpart H—Inter Partes Reexamination of Patents That Issued From an Original Application Filed in the United States on or After November 29, 1999

37 C.F.R. § 1.935

Initial Office action usually accompanies order for inter partes reexamination

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The order for inter partes reexamination will usually be accompanied by the initial Office action on the merits of the reexamination.