LT - Pakeistų benzenų ir benzensulfoninės rūgšties bei jų darinių gavimo būdas ir N,N'-pakeistų karbamidų gavimo būdas
EN - PROCESS FOR THE PREPARATION OF SUBSTITUTED BENZENES AND BENZENE SULFONIC ACID AND DERIVATIVES THEREOF AND A PROCESS FOR THE PREPARATION OF N,N'-SUBSTITUTED UREAS
Legal status
Patent lapsed (non-payment of fees)
Bibliographic data
Indications of the International Patent Classification (IPC)
| (51) |
INT.CL.: (2006.01) |
C07B 35/00
C07B 37/00
C07B 61/00
C07C 303/00
C07C 309/00
C07D 251/00
C07C 309/00
|
Patent
| (11) |
Number of the document |
3243 |
| (13) |
Kind of document |
B |
| (21) |
Application number |
IP814 |
| (22) |
Date of filing the application |
1993-07-23 |
| (41) |
Date of publication of the application |
1994-09-25 |
| (45) |
Date of publication of patent |
1995-04-25 |
Priority applications
| (30) |
Number |
Date |
Country code |
|
932135 |
1992-08-18
|
US |
Applicant
| (71) |
CIBA-GEIGY AG,
Klybeckstrasse 141, 4002 Basle,
CH
|
Inventors
| (72) |
Peter BAUMEISTER, CH
Gottfried SEIFERT, CH
Heinz STEINER, CH
|
Grantee
| (73) |
NOVARTIS AG,
Schwarzwaldallee 215, 4058 Basel,
CH
|
Attorney or representative
| (74) |
Marius JAKULIS - JASON,
AAA Law, A. Goštauto g. 40B, Verslo centras "Dvyniai", LT-03163 Vilnius,
LT
|
Title
| (54) |
PROCESS FOR THE PREPARATION OF SUBSTITUTED BENZENES AND BENZENE SULFONIC ACID AND DERIVATIVES THEREOF AND A PROCESS FOR THE PREPARATION OF N,N'-SUBSTITUTED UREAS
|
Last renewal fee
|
Payment date |
Validity (years) |
Amount |
|
1997-06-09 |
5 |
100.00
USD
|
Legal status
|
Patent lapsed (non-payment of fees)
|
|
|
Invalidation date |
1998-07-23 |
