| (11) | Number of the document | 4564 |
| (21) | Number of the application | a 2017 0056 |
| (22) | Filing date of the application | 2017.05.23 |
| | Date of filing the request for examination | (de fond) 23.05.2017 |
| (71) | Name(s) of applicant(s), code of the country | INSTITUTUL DE CHIMIE, MD; |
| (72) | Name(s) of inventor(s), code of the country | LUPASCU Tudor, MD; CIOBANU Mihail, MD; |
| (73) | Name(s) of owner(s), code of the country | INSTITUTUL DE CHIMIE AL ACADEMIEI DE STIINTE A MOLDOVEI, MD; |
| (54) | Title of the invention | Process for purifying deep waters from ammonium ions and nitrite ions |
| (13) | Kind-of-document code | |
| (51) | International Patent Classification | C02F 1/00 (2006.01); C02F 1/66 (2006.01); C02F 1/72 (2006.01); C02F 1/76 (2006.01); C02F 101/16 (2006.01); |
| (19) | Country | MD |
| (45) | Date of publication of patent granting decision: | 2018.05.31 |
| (47) | Date of issuance of patent | 2018.12.31 |
| | Substantive examiner(s) | STAFI Radu, SĂU Tatiana, GHIŢU Irina Iurie |
| | Payment for maintenance up to the date | 2022.05.23 |
| | Date of patent termination | 2022.05.23 |
| | Date of publication of the termination of patent, with the right of restoration | 2023.02.28 |
| | Date of publication of the termination of patent, without the right of restoration | 2024.04.30 |