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EP0378837
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EP About this file: EP0378837
| EP0378837 - Preparation of calcium sulfate dihydrate having an elongated crystalline structure [Right-click to bookmark this link] | Status | The application is deemed to be withdrawn Status updated on 29.06.1993 Database last updated on 31.05.2024 | Most recent event Tooltip | 29.06.1993 | Application deemed to be withdrawn | published on 18.08.1993 [1993/33] | Applicant(s) | For all designated states LAFARGE COPPEE 28, rue Emile Ménier 75782 Paris Cedex 16 / FR | [N/P] |
| Former [1990/30] | For all designated states LAFARGE COPPEE 28, rue Emile Ménier F-75782 Paris Cedex 16 / FR | Inventor(s) | 01 /
Petit Alain 11 rue Mozart Lotissement Saint-Joseph F-26200 Montélimar / FR | [1990/30] | Representative(s) | Gaucherand, Michel, et al IXAS Conseil 15, rue Emile Zola 69002 Lyon / FR | [N/P] |
| Former [1991/29] | Gaucherand, Michel, et al Ixas Conseil 15 Rue Emile Zola F-69002 Lyon / FR | ||
| Former [1991/21] | Gaucherand, Michel Ixas Conseil 15 Rue Emile Zola F-69002 Lyon / FR | ||
| Former [1990/30] | Eggert, Hans-Gunther, Dr. Räderscheidtstrasse 1 D-50935 Köln / DE | Application number, filing date | 89123641.6 | 21.12.1989 | [1990/30] | Priority number, date | FR19880017450 | 22.12.1988 Original published format: FR 8817450 | [1990/30] | Filing language | FR | Procedural language | FR | Publication | Type: | A1 Application with search report | No.: | EP0378837 | Date: | 25.07.1990 | Language: | FR | [1990/30] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 19.04.1990 | Classification | IPC: | C01F11/46, C09C1/02, D21H13/46, D21H17/67, D21H19/38, C08K7/04, C08K3/30, C04B14/38 | [1990/30] | CPC: |
D21H19/38 (EP,US);
C01F11/466 (EP);
C08K3/30 (EP);
C08K7/08 (EP);
C09C1/025 (EP);
C09D7/61 (EP,US);
C09D7/69 (EP);
C09D7/70 (EP,US);
D21H17/675 (EP);
C01P2004/03 (EP);
C01P2004/10 (EP);
C01P2004/54 (EP);
| Designated contracting states | AT, BE, CH, DE, ES, GB, GR, IT, LI, NL, SE [1990/30] | Title | German: | Herstellung von Calciumsulfatdihydrat mit länglicher kristalliner Struktur | [1990/30] | English: | Preparation of calcium sulfate dihydrate having an elongated crystalline structure | [1990/30] | French: | Préparation de sulfate de calcium dihydrate à structure cristalline longiligne | [1990/30] | File destroyed: | 12.06.1999 | Examination procedure | 05.09.1990 | Examination requested [1990/44] | 27.12.1991 | Despatch of a communication from the examining division (Time limit: M06) | 29.05.1992 | Reply to a communication from the examining division | 05.10.1992 | Despatch of a communication from the examining division (Time limit: M04) | 23.03.1993 | Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time [1993/33] | 08.06.1993 | Application deemed to be withdrawn, date of legal effect [1993/33] | Fees paid | Renewal fee | 16.12.1991 | Renewal fee patent year 03 | 10.11.1992 | Renewal fee patent year 04 |
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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 | [A]JP5499099 ; | [A]GB1297535 ; | [AD]FR2395965 (SUEDDEUTSCHE KALKSTICKSTOFF [DE]); | [A]EP0056200 ; | [AD]WO8805423 (UNITED STATES GYPSUM CO [US]) | [A] - PATENT ABSTRACTS OF JAPAN, vol. 3, no. 118 (C-60), 4 octobre 1979, page 97 C 60; & JP-A-54 99 099 (KURARAY K.K.) 04-08-1979, & JP5499099 A 00000000 |