| (11) | Number of the document | 21 |
| (21) | Number of the application | 94-0086 |
| (22) | Filing date of the application | 1994.02.25 |
| | Date of filing the request for examination | (de fond) 25.02.1994 |
| (71) | Name(s) of applicant(s), code of the country | RICHTER GEDEON VEGYÉSZETI GYÁR RT., HU; |
| (72) | Name(s) of inventor(s), code of the country | Dr. Györdy Hajos, HU; Csaba Molnár, HU; Dr. Jozsef Tóth, HU; Dr. Arpád Király, HU; Dr. György Fekete, HU; Dr. László Szporny, HU; Dr. Lilla Fordacs, HU; Anna Boór née Mezei, HU; Piroska Major née Forstner, HU; Bulcsu Herényi, HU; |
| (73) | Name(s) of owner(s), code of the country | RICHTER GEDEON VEGYÉSZETI GYÁR RT., HU; |
| (54) | Title of the invention | The method of obtaining 22(R,S)-11b, 21-dihidroxi-16a, 17 butylidenbisoxipregn-1,4-dien-3,20 dion |
| (13) | Kind-of-document code | |
| (51) | International Patent Classification | C07J 5/00 (2006.01); |
| (19) | Country | HU |
| (45) | Date of publication of patent granting decision: | 1994.05.31 |
| (47) | Date of issuance of patent | 1994.05.19 |
| (30) | Priority | 4355323, 1988.02.29, SU |
| (74) | Patent attorney | GLAZUNOV Nicolae, Str. Trandafirilor nr. 31, bloc 1, ap. 111, MD-2038, Chişinău, Republica Moldova |
| | Payment for maintenance up to the date | 1996.02.25 |
| | Date of patent termination | 1996.02.25 |
| | Date of publication of the termination of patent, with the right of restoration | 1998.02.28 |
| | Date of publication of the termination of patent, without the right of restoration | 1998.12.30 |
| (30*) | Priority of the former USSR application | 4355323/04, 1988.02.29, SU |
| (10*) | Title of protection of the former USSR | 1711675, SU |