Document O1JNLGjdjXRVQjw4m2YjgKbg1

t & Telephones: (5) 533-50-60 (5) 207-13-64 15) 207-01-56 <5) 511-99-67 45} 511-99-68 m LAW & TECHNICAL OFFICES UHTHOFF, GOMEZ VEGA & UHTHOFF, S.C. APARTADO POSTAL (P.O. BOX) M-2059 06000 MEXICO, OF. E.I. DU PONT DE NESTORS a OOMPSKK Legal Department Patents Records Center 1007 Market Street Wilmington, Delaware 19898 U.S.A July 29, 1987 RECEIVED AUG 06 1987 pAfSST 1 CISPESB ESTABLISHED IN 1905 HAMBURGO No. 260 06600 MEXICO. D.F. PATENTS TRADEMARKS COPYRIGHTS & LICENSING Of Counsel: JAVIER UHTHOFF legal: BERNARDO GOMEZ VEGA ALEJANDRO UHTHOFF BJORN B.VAOILLO ROBERT YOUNG MANUEL M. SOTO MARIO PONCE HERI9ERT0 PEOfiAZA HECTOR VELASCO HORAaO RANGEL GABRIELA ALVAREZ CONSUELO GONZALEZ JAVIER UHTHOFF ORIVE PIERRE DOMETTE EVANGEUNA VILLAFUERTE ADOLFO OCEJO ULIANA HERNANDEZ REBECA GALVAN Technical: JOSE LEON DEL RIO FERNANDO AHEDO OAVID FERNANOEZ MARISELA ARCHUNDIA PORF1RIO GARCIA GEORGINA SAMANO CESAR MOSQl/EDA JUAN HERRERA Administration: MARIO MONTAftEZ SANTIAGO LOZANO RAUL RODRIGUEZ RE: E.I. DU PONT DE NENTOBS^ND COMPANY. Mex. Pat. appln. No. 6288vcorres. to USSN 857,324 - Your Ref: CH-1370 JACOBSON Convention Case - Our Case; 4210 - P Att'n: Mr. David J, Gould. Dear Mr. Gould: With regard to the above identified application, we wish to inform you that we have already filed with the Mexican Patent Office the certified copy of U.S. Serial. No. 857,324 with its Spanish literal translation, in order to ensure the recognition of the priority claimed. Our Debit Note covering our charges in this connection, is herewith enclosed. Very truly yours, UHTHOFF, GOMEZ VEGA & UHTHOFF, S.C. Ends. BBV/rchc/ran* TELEX: 17-74-554 UTOFME 17-73-380 UTOFME FACSIMILE: NEFAX17 GII & 111 DIAL45) 614-75-96 FILE CHECKED HUS12 1987 WORLDPOST: UHTH CABLES: UHTHOFF TELEMAIL: 023 258104 UHGV UR