blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability

2022.02.11

More...
blank News flashes

News Flashes

New version of the European Patent Register – SPC proceedings information in the Unitary Patent Register.

2024-07-24

More...
blank Related links

Release notes
European Patent Register Assistant
European Patent Register Resource Book
European Patent Register – pocket guide
FAQ - European Patent Register
Federated Register (Flyer)
Global Dossier (Flyer)
Register events
Deep link coverage
Federated Register content
The Patent Information Tour
Fair use charter

Extract from the Register of European Patents

EP About this file: EP0436088

EP0436088 - Process for the preparation of 3-aminopyrazine-2-carboxylic acid and of the corresponding alkali salts [Right-click to bookmark this link]
StatusThe application has been withdrawn
Status updated on  10.11.1992
Database last updated on 04.11.2024
Most recent event   Tooltip10.11.1992Withdrawal of applicationpublished on 30.12.1992 [1992/53]
Applicant(s)For all designated states
HÜLS AKTIENGESELLSCHAFT
45764 Marl / DE
[N/P]
Former [1991/28]For all designated states
HÜLS AKTIENGESELLSCHAFT
D-45764 Marl / DE
Inventor(s)01 / Feld, Marcel, Dr.
Im Lochgarten 56
W-5000 Köln 90 / DE
02 / Vogt, Wilhelm, Dr.
Kleiststrasse 39
W-5000 Köln 40 / DE
03 / Hunds, Artur, Dr.
Von-Weichs-Strasse 1
W-5300 Bonn 1 / DE
[1991/28]
Application number, filing date90121362.908.11.1990
[1991/28]
Priority number, dateDE1990400016805.01.1990         Original published format: DE 4000168
[1991/28]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0436088
Date:10.07.1991
Language:DE
[1991/28]
Search report(s)(Supplementary) European search report - dispatched on:EP23.01.1991
ClassificationIPC:C07D241/28
[1991/28]
CPC:
C07D241/26 (EP)
Designated contracting statesCH,   DE,   ES,   FR,   GB,   IT,   LI,   NL [1991/28]
TitleGerman:Verfahren zur Herstellung von 3-Aminopyrazin-2-carbonsäure und den entsprechenden Alkalisalzen[1991/28]
English:Process for the preparation of 3-aminopyrazine-2-carboxylic acid and of the corresponding alkali salts[1991/28]
French:Procédé pour la préparation de l'acide amino-3 pyrazine carboxylique-2 et des sels alcalins correspondants[1991/28]
File destroyed:12.06.1999
Examination procedure17.12.1990Examination requested  [1991/28]
05.11.1992Application withdrawn by applicant  [1992/53]
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[A]DE1920173  ;
 [AD]DE3723874
    [ ] - THE JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Band 67, Januar-Juni 1945 Easton, PA. USA J. WEIJLARD et al. "Some New Aminopyrazines and their Sulfanilamide Deriva- tives" Seiten 802-806 * Seite 804, linke Spalte, Zeile 63 - rechte Spalte, Zeile 6 *
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.