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Created with Raphaël 2.1.0 30.12.1994 Opening of the national phase 30.06.1996 Publication of the PCT application (A) 15.05.1998 Preliminary and substantive examination 31.03.2000 Publication of the decision of grant (B2) 30.09.2000 Completion of the opposition filing period 31.12.2000 Issuance of patent (C2) 24.07.2012 Publication of expiration of the patent

Patent expired


(11)Number of the document1434
(21)Number of the application95-0114
(22)Filing date of the application1992.07.24
 Date of filing the request for examination (de fond) 22.05.1997
(71)Name(s) of applicant(s), code of the countryBIOCHEM PHARMA INC., CA;
(72)Name(s) of inventor(s), code of the countryDIONNE, Gervais, CA;
(73)Name(s) of owner(s), code of the countryBIOCHEM PHARMA INC., CA;
(54)Title of the invention1,3-oxathiolane nucleozide analogues, pharmaceutical compositions thereof and method of treatment of the viral infections
(13)Kind-of-document code
C2, BOPI 01/2001
B2, BOPI 03/2000
A, BOPI 06/1996
(51)International Patent Classification A61K 31/506 (2006.01); C07D 411/04 (2006.01); C12P 17/16 (2006.01); C12P 19/40 (2006.01); C12P 41/00 (2006.01);
(19)CountryCA
(41)Date of publication of the application1996.06.30
(45)Date of publication of patent granting decision:2000.03.31
(47)Date of issuance of patent2001.01.31
(30)Priority9116601.7, 1991.08.01, GB
(74)Patent attorneyJENICICOVSCAIA Galina, Str. Miron Costin nr. 15/2, of. 19-20, MD-2045, Chişinău, Republica Moldova
 Substantive examiner(s)JOVMIR Tudor
(85)Date of introducing the national procedure1994.12.30
(86)International applicationPCT/CA1992/000321, 1992.07.24
(87)International publicationWO 1993/03027, 1993.02.18
 Expired patents; Date of expiration2013.01.31
 Payment for maintenance up to the date2012.07.24
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