MPEP 601.04
National Stage Requirements of the United States as a Designated Office

Ninth Edition of the MPEP, Revision 10.2019, Last Revised in June 2020

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601.04    National Stage Requirements of the United States as a Designated Office [R-08.2012]

See MPEP Chapter 1800, especially MPEP § 1893.01 for requirements for entry into the national stage before the Designated Office or Elected Office under the Patent Cooperation Treaty (PCT).