PCT Rule 28 — Defects Noted by the International Bureau

28.1 Note on Certain Defects

• (a) If, in the opinion of the International Bureau, the international application contains any of the defects referred to in Article 14(1)(a)(i), (ii) or (v) , the International Bureau shall bring such defects to the attention of the receiving Office.
• (b) The receiving Office shall, unless it disagrees with the said opinion, proceed as provided in Article 14(1)(b) and Rule 26 .