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EP0426343
European procedure
Extract from the Register of European Patents
EP About this file: EP0426343
| EP0426343 - Process for manufacture of 1,1-dichlorotetrafluoroethane [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 24.12.1994 Database last updated on 19.10.2024 | Most recent event Tooltip | 23.12.1999 | Lapse of the patent in a contracting state New state(s): GR, LU | published on 09.02.2000 [2000/06] | Applicant(s) | For all designated states E. I. du Pont de Nemours and Company 1007 Market Street Wilmington, DE 19898 / US | [N/P] |
| Former [1991/19] | For all designated states E.I. DU PONT DE NEMOURS AND COMPANY 1007 Market Street Wilmington Delaware 19898 / US | Inventor(s) | 01 /
Gumprecht, William Henry 2606 Stephenson Drive Wilmington, Delaware 19808 / US | 02 /
Longoria, John Mark 1405 Maple Street Rochester, Michigan 48063 / US | 03 /
Christoph, Frank J. 92 Blake Road Elkton, Maryland 21921 / US | [1991/19] | Representative(s) | Woodcraft, David Charles, et al Brookes Batchellor 102-108 Clerkenwell Road London EC1M 5SA / GB | [N/P] |
| Former [1991/19] | Woodcraft, David Charles, et al BROOKES & MARTIN High Holborn House 52/54 High Holborn London, WC1V 6SE / GB | Application number, filing date | 90311508.7 | 19.10.1990 | [1991/19] | Priority number, date | US19890429126 | 30.10.1989 Original published format: US 429126 | [1991/19] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0426343 | Date: | 08.05.1991 | Language: | EN | [1991/19] | Type: | B1 Patent specification | No.: | EP0426343 | Date: | 23.02.1994 | Language: | EN | [1994/08] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 20.02.1991 | Classification | IPC: | C07C19/08, C07C17/20 | [1991/19] | CPC: |
C07C17/206 (EP);
C07C19/08 (KR);
B01J27/06 (KR);
C07C17/20 (KR)
| C-Set: |
C07C17/206, C07C19/12 (EP)
| Designated contracting states | AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LI, LU, NL, SE [1991/19] | Title | German: | Verfahren zur Herstellung von 1,1-Dichlorotetrafluorethan | [1991/19] | English: | Process for manufacture of 1,1-dichlorotetrafluoroethane | [1991/19] | French: | Procédé pour la préparation de 1,1-dichlorotetrafluoroéthane | [1991/19] | Examination procedure | 22.05.1991 | Examination requested [1991/29] | 02.11.1992 | Despatch of a communication from the examining division (Time limit: M06) | 07.04.1993 | Reply to a communication from the examining division | 18.05.1993 | Despatch of communication of intention to grant (Approval: Yes) | 19.08.1993 | Communication of intention to grant the patent | 06.10.1993 | Fee for grant paid | 06.10.1993 | Fee for publishing/printing paid | Opposition(s) | 24.11.1994 | No opposition filed within time limit [1995/07] | Fees paid | Renewal fee | 02.10.1992 | Renewal fee patent year 03 | 05.10.1993 | 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. | Lapses during opposition Tooltip | AT | 23.02.1994 | BE | 23.02.1994 | CH | 23.02.1994 | DK | 23.02.1994 | GR | 23.02.1994 | LI | 23.02.1994 | SE | 23.02.1994 | LU | 31.10.1994 | [2000/04] |
| Former [1998/15] | AT | 23.02.1994 | |
| BE | 23.02.1994 | ||
| CH | 23.02.1994 | ||
| DK | 23.02.1994 | ||
| LI | 23.02.1994 | ||
| SE | 23.02.1994 | ||
| Former [1994/49] | AT | 23.02.1994 | |
| BE | 23.02.1994 | ||
| CH | 23.02.1994 | ||
| LI | 23.02.1994 | ||
| SE | 23.02.1994 | ||
| Former [1994/47] | AT | 23.02.1994 | |
| CH | 23.02.1994 | ||
| LI | 23.02.1994 | ||
| SE | 23.02.1994 | ||
| Former [1994/46] | AT | 23.02.1994 | |
| SE | 23.02.1994 | ||
| Former [1994/45] | SE | 23.02.1994 | Documents cited: | Search | [XD]US2005708 (WILKENS DAUDT HERBERT, et al); | [A]US2005713 (CONE HOLT LEE, et al); | [A]US2824900 (MARCELLO TERRUZZI); | [A]EP0317981 (ASAHI GLASS CO LTD [JP]) |