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Created with Raphaël 2.1.0 28.03.1995 Formal examination (assignment of filing date) 31.08.1996 Publication of the decision of grant (F1) 28.02.1997 Completion of the opposition filing period 30.04.1997 Issuance of patent (G2) 28.03.1998 Valid until 31.12.1999 Publication of the decision of forfeiture, the term of re-establishment has expired

Patent expired


(11)Number of the document456
(21)Number of the application95-0213
(22)Filing date of the application1995.03.28
 Date of filing the request for examination (pe raspunderea solicitantului) 05.01.1996
(71)Name(s) of applicant(s), code of the countryUNIVERSITATEA DE STAT DIN MOLDOVA, MD;
(72)Name(s) of inventor(s), code of the countryDUCA Gheorghe, MD; GONTA Maria, MD;
(73)Name(s) of owner(s), code of the countryUNIVERSITATEA DE STAT DIN MOLDOVA, MD;
(54)Title of the inventionMethod for nitrit - ion polluted water purification
(13)Kind-of-document code
G2, BOPI 05/1997
F1, BOPI 08/1996
(51)International Patent Classification C02F 1/70 (2006.01);
(19)CountryMD
(45)Date of publication of patent granting decision:1996.08.31
(47)Date of issuance of patent1997.04.15
 Payment for maintenance up to the date1998.03.28
 Date of patent termination1998.03.28
 Date of publication of the termination of patent, with the right of restoration1998.11.30
 Date of publication of the termination of patent, without the right of restoration1999.12.31
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