MPEP § 1870 — Priority Document and Translation Thereof (Annotated Rules)

§1870 Priority Document and Translation Thereof

USPTO MPEP version: BlueIron's Update: 2025-12-31

This page consolidates and annotates all enforceable requirements under MPEP § 1870, including statutory authority, regulatory rules, examiner guidance, and practice notes. It is provided as guidance, with links to the ground truth sources. This is information only, it is not legal advice.

Priority Document and Translation Thereof

This section addresses Priority Document and Translation Thereof. Contains: 1 requirement and 3 permissions.

Key Rules

Topic

International Preliminary Examining Authority (IPEA)

1 rules
StatutoryPermittedAlways
[mpep-1870-45776e09fca81e2ff28daf76]
Translation Required for Priority Claim
Note:
The International Preliminary Examining Authority may require a translation if the priority application is in a language other than those of the authority, especially when the validity of the claim is relevant.

(b) If the application whose priority is claimed in the international application is in a language other than the language or one of the languages of the International Preliminary Examining Authority, that Authority may, where the validity of the priority claim is relevant for the formulation of the opinion referred to in Article 33(1), invite the applicant to furnish a translation in the said language or one of the said languages within two months from the date of the invitation. If the translation is not furnished within that time limit, the international preliminary examination report may be established as if the priority had not been claimed.

Jump to MPEP SourceInternational Preliminary Examining Authority (IPEA)Patent Cooperation TreatyArticle 34 Amendments
Topic

Article 34 Amendments

1 rules
StatutoryPermittedAlways
[mpep-1870-3eee51fa1d896a177557372a]
Translation Required for Priority Claim
Note:
If a translation is not provided within two months, the priority claim may be deemed invalid.

(b) If the application whose priority is claimed in the international application is in a language other than the language or one of the languages of the International Preliminary Examining Authority, that Authority may, where the validity of the priority claim is relevant for the formulation of the opinion referred to in Article 33(1), invite the applicant to furnish a translation in the said language or one of the said languages within two months from the date of the invitation. If the translation is not furnished within that time limit, the international preliminary examination report may be established as if the priority had not been claimed.

Jump to MPEP SourceArticle 34 AmendmentsInternational Preliminary Examination (Chapter II)International Preliminary Examining Authority (IPEA)
Topic

Article 19 Amendment Scope

1 rules
MPEP GuidanceRequiredAlways
[mpep-1870-a34b8a02ae32fa316e273547]
International Bureau Must Provide Copy of Earlier Application on Request
Note:
The International Bureau must promptly provide a copy of the earlier application to the International Preliminary Examining Authority upon request.

(a) If the International Preliminary Examining Authority needs a copy of the earlier application whose priority is claimed in the international application, the International Bureau shall, on request, promptly furnish such copy. If that copy is not furnished to the International Preliminary Examining Authority because the applicant failed to comply with the requirements of Rule 17.1, and if that earlier application was not filed with that Authority in its capacity as a national Office or the priority document is not available to that Authority from a digital library in accordance with the Administrative Instructions, the international preliminary examination report may be established as if the priority had not been claimed.

Jump to MPEP SourceArticle 19 Amendment ScopeInternational Preliminary Examining Authority (IPEA)Priority Claim in PCT
Topic

Nationals and Residents

1 rules
MPEP GuidancePermittedAlways
[mpep-1870-a3b5a831ef4594451cd912da]
Priority Claim May Be Invalidated If Earlier Application Not Provided
Note:
If the earlier application is not provided to the International Preliminary Examining Authority due to applicant's failure to comply with Rule 17.1 requirements, the priority claim may be deemed invalid.

(a) If the International Preliminary Examining Authority needs a copy of the earlier application whose priority is claimed in the international application, the International Bureau shall, on request, promptly furnish such copy. If that copy is not furnished to the International Preliminary Examining Authority because the applicant failed to comply with the requirements of Rule 17.1, and if that earlier application was not filed with that Authority in its capacity as a national Office or the priority document is not available to that Authority from a digital library in accordance with the Administrative Instructions, the international preliminary examination report may be established as if the priority had not been claimed.

Jump to MPEP SourceNationals and ResidentsReceiving Office (RO/US)Article 34 Amendments

Source Text from USPTO’s MPEP

This is an exact copy of the MPEP from the USPTO. It is here for your reference to see the section in context.

BlueIron Last Updated: 2025-12-31