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Created with Raphaël 2.1.0 22.07.1994 Formal examination (assignment of filing date) 31.10.1994 Issuance of patent (C2) 30.11.1994 Publication of the decision of grant (B1) 31.05.1995 Completion of the opposition filing period 31.03.1998 Publication of the decision of forfeiture, the term of re-establishment has expired

Patent expired


(11)Number of the document85
(21)Number of the application94-0218
(22)Filing date of the application1994.07.22
 Date of filing the request for examination (de fond) 22.07.1994
(71)Name(s) of applicant(s), code of the countryRUDIC Valeriu, MD; ISAC Victor, MD; GULEA Aurelian, MD; SOVA Sergiu, MD; DENCICOV Lidia, MD; GUDUMAC Valentin, MD; DAVID Svetlana, MD;
(72)Name(s) of inventor(s), code of the countryRUDIC Valeriu, MD; ISAC Victor, MD; GULEA Aurelian, MD; SOVA Sergiu, MD; DENCICOV Lidia, MD; GUDUMAC Valentin, MD; DAVID Svetlana , MD;
(73)Name(s) of owner(s), code of the countryRUDIC Valeriu, MD; ISAC Victor, MD; GULEA Aurelian, MD; SOVA Sergiu, MD; DENCICOV Lidia, MD; GUDUMAC Valentin, MD; DAVID Gheorghe, MD;
(54)Title of the invention The hydrosulphate ferrous dihydrazin (II) in condition for cultivating microalgae matter
(13)Kind-of-document code C2
(51)International Patent Classification A01N 33/26 (2006.01); C01B 17/96 (2006.01); C01B 21/16 (2006.01); C01G 49/00 (2006.01);
(19)CountryMD
(45)Date of publication of patent granting decision:1994.11.30
(47)Date of issuance of patent1994.11.04
 Payment for maintenance up to the date1994.07.22
 Date of patent termination1994.07.22
 Date of publication of the termination of patent, with the right of restoration1996.12.31
 Date of publication of the termination of patent, without the right of restoration1998.03.31
(30*)Priority of the former USSR application4828713, 1990.04.23, SU
(10*)Title of protection of the former USSR1756270, SU
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