Request for Continued Examination (RCE)
Certificate of mailing (37 CFR 1.8):
RCE - is entitled to the benefit of a certificate of mailing under 37 CFR 1.8
CPA - is not entitled to the benefit of a certificate of mailing under 37 CFR 1.8 (new application filing)
Section 1.129(a) - is entitled to the benefit of a certificate of mailing under 37 CFR 1.8