Applicable as from
November 1, 2026
(Last updated on October 30, 2026)
Summary of latest changes in this version
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Annex B - Information on Contracting States or Intergovernmental Organization:
Facsimile number removed.
Office no longer accepts filing of documents by facsimile (PCT Rule 92.4).
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(Advance notice The Office has notified the IB of changes entering into force soon
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