Where a document other than a form required by the registrar and published in accordance with rule 3 above is filed at the Office and the person filing it requests, at the time of filing or within fourteen days of the filing, that it or a specified part of it be treated as confidential, giving his reasons, the registrar may direct that it or part of it, as the case may be, be treated as confidential, and the document shall not be open to public inspection while the matter is being determined by the registrar.

Where such direction has been given and not withdrawn, nothing in this rule shall be taken to authorise or require any person to be allowed to inspect the document or part of it to which the direction relates except by leave of the registrar.

The registrar shall not withdraw any direction given under this rule without prior consultation with the person at whose request the direction was given, unless the registrar is satisfied that such prior consultation is not reasonably practical.

The registrar may where she considers that any document issued by the Office should be treated as confidential so direct, and upon such direction that document shall not be open to public inspection except by leave of the registrar.

Where a direction is given under this rule for a document to be treated as confidential a record of the fact shall be filed with the document.