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

Extract from the Register of European Patents

EP About this file: EP0172140

EP0172140 - Process for the preparation of pyridine-2,3-dicarboxylic-acid derivatives and 1-amino-1,2,3,4-tetrahydro-pyridine-2,3-dicarboxylic acid derivatives and 2,4-dihydropyridine-2,3-dicarboxylic-acid derivatives [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  28.06.1990
Database last updated on 18.10.2024
Most recent event   Tooltip28.06.1990No opposition filed within time limitpublished on 16.08.1990 [1990/33]
Applicant(s)For all designated states
CIBA-GEIGY AG
Klybeckstrasse 141
4002 Basel / CH
[N/P]
Former [1986/08]For all designated states
CIBA-GEIGY AG
Klybeckstrasse 141
CH-4002 Basel / CH
Inventor(s)01 / Waldner, Adrian, Dr.
Holeeweg 39
CH-4123 Allschwil / CH
[1986/08]
Application number, filing date85810362.505.08.1985
[1986/08]
Priority number, dateCH1984000383810.08.1984         Original published format: CH 383884
[1986/08]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0172140
Date:19.02.1986
Language:DE
[1986/08]
Type: A3 Search report 
No.:EP0172140
Date:29.10.1986
Language:DE
[1986/44]
Type: B1 Patent specification 
No.:EP0172140
Date:06.09.1989
Language:DE
[1989/36]
Search report(s)(Supplementary) European search report - dispatched on:EP09.09.1986
ClassificationIPC:C07D471/04, // C07D213/79, C07D213/81 ,(C07D471/04, 221:00, 209:00)
[1986/08]
CPC:
C07D213/803 (EP,US); C07D213/81 (EP,US); C07D471/04 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   FR,   GB,   IT,   LI,   NL,   SE [1986/08]
TitleGerman:Verfahren zur Herstellung von Pyridin-2,3-dicarbonsäurederivaten und neue 1-Amino-1,2,3,4-tetrahydropyridin-2,3-dicarbonsäurederivate und 1,4-Dihydropyridin-2,3-dicarbonsäurederivate[1986/08]
English:Process for the preparation of pyridine-2,3-dicarboxylic-acid derivatives and 1-amino-1,2,3,4-tetrahydro-pyridine-2,3-dicarboxylic acid derivatives and 2,4-dihydropyridine-2,3-dicarboxylic-acid derivatives[1986/08]
French:Procédé pour la préparation de dérivés de la pyridine-2,3-dicarboxylique et de dérivés de 1-amino-1,2,3,4-tétrahydropyridine-2,3-dicarboxylique et de 1,4-dihydropyridine-2,3-dicarboxyliques[1986/08]
Examination procedure07.08.1985Examination requested  [1986/08]
02.05.1988Despatch of a communication from the examining division (Time limit: M02)
06.07.1988Reply to a communication from the examining division
25.08.1988Despatch of a communication from the examining division (Time limit: M02)
07.10.1988Reply to a communication from the examining division
28.11.1988Despatch of communication of intention to grant (Approval: Yes)
13.03.1989Communication of intention to grant the patent
08.06.1989Fee for grant paid
08.06.1989Fee for publishing/printing paid
Opposition(s)06.06.1990No opposition filed within time limit [1990/33]
Fees paidRenewal fee
30.06.1987Renewal fee patent year 03
28.06.1988Renewal fee patent year 04
28.06.1989Renewal fee patent year 05
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[AD]EP0041623  (AMERICAN CYANAMID CO [US])
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.