Rule 67
67. Form of making a claim under section 28(3).—
(1) A claim under sub section (3) of section 28 shall be made in Form 8, and shall be accompanied by a statement setting out the circumstances under which the claim is made.
(2) A copy of the claim and the statement shall be sent by the Controller to every applicant for the patent (not being the claimant) and to any other person whom the Controller may consider to be interested.