| (11) | Number of the document | 1197 |
| (21) | Number of the application | 97-0025 |
| (22) | Filing date of the application | 1997.01.27 |
| | Date of filing the request for examination | (de fond) 24.02.1997 |
| (71) | Name(s) of applicant(s), code of the country | MAXIMUK Petru, MD; |
| (72) | Name(s) of inventor(s), code of the country | MAXIMUK Piotr, MD; |
| (73) | Name(s) of owner(s), code of the country | MAXIMUK Piotr, MD; |
| (54) | Title of the invention | Mass-exchange apparatus |
| (13) | Kind-of-document code | |
| (51) | International Patent Classification | B01D 3/32 (2006.01); |
| (19) | Country | MD |
| (45) | Date of publication of patent granting decision: | 1999.04.30 |
| (47) | Date of issuance of patent | 1999.12.31 |
| | Substantive examiner(s) | POPOV Svetlana |
| | Payment for maintenance up to the date | 2000.01.27 |
| | Date of patent termination | 2000.01.27 |
| | Date of publication of the termination of patent, with the right of restoration | 2002.05.15 |
| | Date of publication of the termination of patent, without the right of restoration | 2002.12.30 |