2.20.5.2 Obtaining and Considering Priority Documents

Date Published

A copy of a priority document is not required for national phase applications, except under the following circumstances:

a. where third parties request a copy of the document;

b. in examination or re-examination, where there is a citation published after the priority date and before the filing date, or a whole of contents citation with a priority date after the priority date and before the filing date, of the case being examined;

c. in examination or re-examination, where there is a whole of contents citation having a priority date before the priority date of the case being examined; or

d. in opposition, when requested by the opponent.

During examination, if either of circumstances b. and c. arises and examiners have reason to believe that the claims are not entitled to the claimed priority date, they should check whether the relevant priority document(s) is available from Patentscope or another database, e.g. USPTO Public PAIR, in order to verify the priority claim. If the document is present, a copy should be downloaded and added to the case file. Where the priority document is not available, examiners should contact COG with a request to obtain the document from WIPO. The procedures to be followed are the  same as those for obtaining basic specifications (see 2.21.3.8 Basic Specifications and in particular Obtaining Basic Specifications and Time Limits for Providing Basic Specifications).