| (11) | Number of the document | 10 |
| (21) | Number of the application | 93-0063 |
| (22) | Filing date of the application | 1993.11.15 |
| | Date of filing the request for examination | (de fond) 15.11.1993 |
| (71) | Name(s) of applicant(s), code of the country | DR.-ING. REINHART FON NORDENSKJOLD, DE; |
| (72) | Name(s) of inventor(s), code of the country | DR.-ING. REINHART FON NORDENSKJOLD, DE; |
| (73) | Name(s) of owner(s), code of the country | DR.-ING. REINHART FON NORDENSKJOLD, DE; |
| (54) | Title of the invention | Method of biological cleaning of sewage |
| (13) | Kind-of-document code | |
| (51) | International Patent Classification | C02F 3/02 (2006.01); |
| (19) | Country | DE |
| (45) | Date of publication of patent granting decision: | 1994.03.31 |
| (47) | Date of issuance of patent | 1994.08.18 |
| (30) | Priority | P 3619954.0, 1986.06.13, DE |
| (74) | Patent attorney | SOCOLOVA Sofia, Str. Drumul Viilor nr. 42, bloc 3, ap. 60, MD-2021, Chiєinгu, Republica Moldova |
| | Payment for maintenance up to the date | 2001.11.15 |
| | Date of patent termination | 2001.11.15 |
| | Date of publication of the termination of patent, with the right of restoration | 2003.02.28 |
| | Date of publication of the termination of patent, without the right of restoration | 2003.09.17 |
| (30*) | Priority of the former USSR application | 4202821/26, 1987.06.12, SU |
| (10*) | Title of protection of the former USSR | 1787138, SU |