| (11) | Number of the document | 57 |
| (21) | Number of the application | 94-0070 |
| (22) | Filing date of the application | 1994.03.25 |
| | Date of filing the request for examination | (de fond) 25.03.1994 |
| (71) | Name(s) of applicant(s), code of the country | HAFSLUND NYCOMED PHARMA AKTIENGESELLSCHAFT, AT; |
| (72) | Name(s) of inventor(s), code of the country | Hans Peter Wagner, AT; |
| (73) | Name(s) of owner(s), code of the country | HAFSLUND NYCOMED PHARMA AKTIENGESELLSCHAFT, AT; |
| (54) | Title of the invention | Process for obtaining compound ethers of the 5-chlor-3-chlorsukphonyl-2-thiophencarbonic acid. |
| (13) | Kind-of-document code | |
| (51) | International Patent Classification | C07D 333/40 (2006.01); |
| (19) | Country | AT |
| (45) | Date of publication of patent granting decision: | 1994.08.31 |
| (47) | Date of issuance of patent | 1995.03.22 |
| (30) | Priority | A 1123/88, 1988.05.02, AT |
| (74) | Patent attorney | SOCOLOVA Sofia, Str. Drumul Viilor nr. 42, bloc 3, ap. 60, MD-2021, Chiєinгu, Republica Moldova |
| | Expired patents; Date of expiration | 2010.01.31 |
| | Payment for maintenance up to the date | 2009.03.24 |
| (30*) | Priority of the former USSR application | 4613917/04, 1989.04.25, SU |
| (10*) | Title of protection of the former USSR | 1704632, SU |