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Attribute

Description

countryCountry is represented by a standard 2-character code based on WIPO ST.3.
impact+ , -, or neutral
code1-4 character code. Legal status codes are country-specific. See the links above for more information.
dateDate of public notification (YYYYMMDD), e.g., gazette date
class

Letter designation that groups event codes into categories which are of particular importance to the prosecution of a patent and share a common theme. Class is available in the frontfile beginning in March 2020. See ST.27 for more information.

Some examples include:

  • C=Application revival, i.e., events related to the revival, reinstatement or restoration of an application after it has been discontinued
  • P=Document modification, i.e., events related to modifications of an application, IP right document or other document, which occur outside the context of a pre-grant review or IP right review

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