(175)                            Helpful Hints

   o Correspondence with Certificate of Mailing Delivered by Commerical 
Carrier--The benefits of 37 CFR 1.8 or 1.10 apply only to documents 
delivered to the PTO by the U.S. Postal Service. 
   A number of instances have been uncovered where individuals are
certifying that documents were deposited with the U.S. Postal Service
when, in fact, the documents were hand carried or delivered to the PTO
via commerical mail service, e.g., "Federal Express," "DHL,"
"Purolator," "Air Borne," "UPS'," etc. In those instances where
documents include a certificate of mailing under 37 CFR 1.8 or 1.10, but
were delivered to the PTO by other than U.S. Postal Service, Mail Room
personnel are placing a notice indicating that fact on the
correspondence involved to alert PTO personnel that the benefits of 37
CFR 1.8 or 1.10 do not apply.

                                 [1080 TMOG 6]