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EP0545148
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EP About this file: EP0545148
| EP0545148 - Indicators for determining the protonconcentration [Right-click to bookmark this link] | Status | The application has been refused Status updated on 15.01.1999 Database last updated on 30.10.2024 | Most recent event Tooltip | 15.01.1999 | Refusal of application | published on 03.03.1999 [1999/09] | Applicant(s) | For all designated states Merck Patent GmbH Postfach Frankfurter Strasse 250 64271 Darmstadt / DE | [N/P] |
| Former [1994/11] | For all designated states MERCK PATENT GmbH Postfach, Frankfurter Strasse 250 D-64271 Darmstadt / DE | ||
| Former [1993/23] | For all designated states MERCK PATENT GmbH Postfach, Frankfurter Strasse 250 D-64271 Darmstadt / DE | Inventor(s) | 01 /
Fischer, Wolfgang, Dr. Kröhweg 27 W-6100 Darmstadt / DE | 02 /
Klink, Rainer, Dr. Hobrechtstrasse 40 W-6100 Darmstadt / DE | [1993/23] | Application number, filing date | 92119688.7 | 19.11.1992 | [1993/23] | Priority number, date | DE19914139302 | 29.11.1991 Original published format: DE 4139302 | [1993/23] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0545148 | Date: | 09.06.1993 | Language: | DE | [1993/23] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 15.03.1993 | Classification | IPC: | G01N31/22, C09B56/04, C09B29/00, C09B35/215 | [1993/23] | CPC: |
G01N31/22 (EP);
C09B35/215 (EP)
| Designated contracting states | BE, DE, FR, GB [1993/23] | Title | German: | Indikatoren zur Bestimmung der Protonenkonzentration | [1993/23] | English: | Indicators for determining the protonconcentration | [1993/23] | French: | Indicateurs pour la détermination de la concentration des protons | [1993/23] | Examination procedure | 11.11.1993 | Examination requested [1994/01] | 12.11.1996 | Despatch of a communication from the examining division (Time limit: M04) | 23.01.1997 | Reply to a communication from the examining division | 11.08.1997 | Despatch of a communication from the examining division (Time limit: M04) | 21.11.1997 | Reply to a communication from the examining division | 28.09.1998 | Despatch of communication that the application is refused, reason: substantive examination [1999/09] | 08.10.1998 | Application refused, date of legal effect [1999/09] | Fees paid | Renewal fee | 15.11.1994 | Renewal fee patent year 03 | 09.11.1995 | Renewal fee patent year 04 | 11.11.1996 | Renewal fee patent year 05 | 10.11.1997 | Renewal fee patent year 06 | 10.11.1998 | Renewal fee patent year 07 |
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| 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 | [XD]DE2436257 | [X] - CHEMICAL ABSTRACTS, vol. 73, no. 17, 26. Oktober 1970, Columbus, Ohio, US; abstract no. 91304, ZAHRADNICEK, MILAN ET AL. 'Visual indicators in titrations in nonaqueous solvents. II. Azo compounds as indicators in anhydrous acetic acid' Seite 243 ; | [X] - CHEMICAL ABSTRACTS, vol. 86, no. 18, 2. Mai 1977, Columbus, Ohio, US; abstract no. 122947, 'Disazo dyes' Seite 85 ; | [X] - CHEMICAL ABSTRACTS, vol. 100, no. 16, 16. April 1984, Columbus, Ohio, US; abstract no. 122981, 'Inks for ink-jet printing' Seite 97 ; | [X] - CHEMICAL ABSTRACTS, vol. 98, no. 6, 7. Februar 1983, Columbus, Ohio, US; abstract no. 35532, 'Light stabilizers for urethane polymers' Seite 40 ; |