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Created with Raphaël 2.1.0 15.11.1993 Formal examination (assignment of filing date) 31.03.1994 Publication of the decision of grant (B1) 31.08.1994 Issuance of patent (C2) 30.09.1994 Completion of the opposition filing period 15.11.2001 Valid until 17.09.2003 Publication of the decision of forfeiture, the term of re-establishment has expired

Patent expired


(11)Number of the document10
(21)Number of the application93-0063
(22)Filing date of the application1993.11.15
 Date of filing the request for examination (de fond) 15.11.1993
(71)Name(s) of applicant(s), code of the countryDR.-ING. REINHART FON NORDENSKJOLD, DE;
(72)Name(s) of inventor(s), code of the countryDR.-ING. REINHART FON NORDENSKJOLD, DE;
(73)Name(s) of owner(s), code of the countryDR.-ING. REINHART FON NORDENSKJOLD, DE;
(54)Title of the inventionMethod of biological cleaning of sewage
(13)Kind-of-document code
C2, BOPI 09/1994
B1, BOPI 03/1994
(51)International Patent Classification C02F 3/02 (2006.01);
(19)CountryDE
(45)Date of publication of patent granting decision:1994.03.31
(47)Date of issuance of patent1994.08.18
(30)PriorityP 3619954.0, 1986.06.13, DE
(74)Patent attorneySOCOLOVA Sofia, Str. Drumul Viilor nr. 42, bloc 3, ap. 60, MD-2021, Chiєinгu, Republica Moldova
 Payment for maintenance up to the date2001.11.15
 Date of patent termination2001.11.15
 Date of publication of the termination of patent, with the right of restoration2003.02.28
 Date of publication of the termination of patent, without the right of restoration2003.09.17
(30*)Priority of the former USSR application4202821/26, 1987.06.12, SU
(10*)Title of protection of the former USSR1787138, SU
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