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For some US and for all other authorities, the existence of of a term extension or Supplementary Protection Certificate is indicated by a "regulatory-extension" flag in the IFI Status container, but the "anticipated-expiration" date does not reflect the term extension.
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European Patents are a special case since the status of the patent after grant is controlled at the national patent office level. For more information about the IFI Patent Status of EPsEP records, consult New IFI Patent Status for EP.
Note: Detailed information about coverage in Inpadoc legal status data and coverage can be found at https://www.epo.org/searching-for-patents/helpful-resources/data/tables/weekly.html.
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