52. Procedure for the hearing of claim or an application under section 28. -The procedure specified in rules 35 to 45 relating to the filing of notice of opposition, written statement, reply statement, leaving evidence and hearing shall, so far as may be, apply to the hearing of a claim or an application under section 28 as they apply to the proceedings in opposition to the grant of patents subject to the modification that reference to applicant shall be construed as the person making the claim or an application as the case may be. |