611.03(d) Petitions to Revive 
A petition to revive under 37 C.F.R. §2.66 must be signed by someone with firsthand knowledge of the facts regarding unintentional delay. 37 C.F.R. §§2.66(b)(2), (c)(2), and 2.193(e)(4); TMEP §1714.01(e). Any response to an Office action accompanying the petition must be signed by a qualified practitioner, or by the individual applicant or someone with legal authority to bind a juristic applicant (e.g., a corporate officer or general partner of a partnership) if the applicant is not represented by an authorized practitioner ( see TMEP §611.03(b)).