| (11) | Number of the document | 4185 |
| (21) | Number of the application | a 2011 0020 |
| (22) | Filing date of the application | 2011.03.03 |
| | Date of filing the request for examination | (de fond) 03.03.2011 |
| (71) | Name(s) of applicant(s), code of the country | INSTITUTUL DE ENERGETICA AL ACADEMIEI DE STIINTE A MOLDOVEI, MD; |
| (72) | Name(s) of inventor(s), code of the country | TIRSU Mihai, MD; |
| (73) | Name(s) of owner(s), code of the country | INSTITUTUL DE ENERGETICA AL ACADEMIEI DE STIINTE A MOLDOVEI, MD; |
| (54) | Title of the invention | Electric-arc welding unit |
| (13) | Kind-of-document code | |
| (51) | International Patent Classification | B23K 9/00 (2006.01); B23K 9/10 (2006.01); |
| (19) | Country | MD |
| (41) | Date of publication of the application | 2012.09.30 |
| (45) | Date of publication of patent granting decision: | 2012.11.30 |
| (47) | Date of issuance of patent | 2013.06.30 |
| | Substantive examiner(s) | SĂU Tatiana |
| | Payment for maintenance up to the date | 2016.03.03 |
| | Date of patent termination | 2016.03.03 |
| | Date of publication of the termination of patent, with the right of restoration | 2016.10.31 |
| | Date of publication of the termination of patent, without the right of restoration | 2017.09.30 |