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EP0428630
European procedure
Extract from the Register of European Patents
EP About this file: EP0428630
| EP0428630 - SUPERCONDUCTING METAL OXIDE COMPOSITIONS AND PROCESSES FOR MANUFACTURE AND USE [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 13.08.1994 Database last updated on 18.03.2026 | Most recent event Tooltip | 13.08.1994 | No opposition filed within time limit | published on 05.10.1994 [1994/40] | Applicant(s) | For all designated states E. I. du Pont de Nemours and Company 1007 Market Street Wilmington, DE 19898 / US | [N/P] |
| Former [1991/22] | For all designated states E.I. DU PONT DE NEMOURS AND COMPANY 1007 Market Street Wilmington Delaware 19898 / US | Inventor(s) | 01 /
SUBRAMANIAN, Munirpallam, Appadorai 119 Dutton Drive New Castle, DE 19720 / US | [1991/22] | Representative(s) | Jones, Alan John, et al CARPMAELS & RANSFORD 43 Bloomsbury Square London, WC1A 2RA / GB | [N/P] |
| Former [1991/22] | Jones, Alan John, et al CARPMAELS & RANSFORD 43 Bloomsbury Square London, WC1A 2RA / GB | Application number, filing date | 89911456.5 | 17.07.1989 | [1991/22] | WO1989US03017 | Priority number, date | US19880230631 | 10.08.1988 Original published format: US 230631 | US19880236088 | 24.08.1988 Original published format: US 236088 | [1991/22] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | WO9001461 | Date: | 22.02.1990 | Language: | EN | [1990/05] | Type: | A1 Application with search report | No.: | EP0428630 | Date: | 29.05.1991 | Language: | EN | The application published by WIPO in one of the EPO official languages on 22.02.1990 takes the place of the publication of the European patent application. | [1991/22] | Type: | B1 Patent specification | No.: | EP0428630 | Date: | 13.10.1993 | Language: | EN | [1993/41] | Search report(s) | International search report - published on: | US | 22.02.1990 | (Supplementary) European search report - dispatched on: | EP | 11.10.1991 | Classification | IPC: | C01G21/00, H01L39/12, C04B35/00 | [1993/41] | CPC: |
C01G21/006 (EP);
H10N60/857 (EP);
C01P2002/72 (EP);
C01P2002/77 (EP);
C01P2004/82 (EP)
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| Former IPC [1991/22] | C01F11/02, C01G3/02, C01G21/00, H01L39/12 | Designated contracting states | AT, CH, DE, FR, GB, IT, LI, NL [1991/22] | Title | German: | SUPRALEITENDE METALLOXIDZUSAMMENSETZUNGEN UND VERFAHREN ZUR HERSTELLUNG | [1991/22] | English: | SUPERCONDUCTING METAL OXIDE COMPOSITIONS AND PROCESSES FOR MANUFACTURE AND USE | [1991/22] | French: | COMPOSITIONS D'OXYDE METALLIQUE SUPRACONDUCTEUR ET PROCEDES DE FABRICATION ET D'UTILISATION | [1991/22] | Entry into regional phase | 25.01.1991 | National basic fee paid | 25.01.1991 | Search fee paid | 25.01.1991 | Designation fee(s) paid | 25.01.1991 | Examination fee paid | Examination procedure | 08.02.1990 | Request for preliminary examination filed International Preliminary Examining Authority: DE | 25.01.1991 | Examination requested [1991/22] | 11.06.1992 | Despatch of a communication from the examining division (Time limit: M04) | 13.10.1992 | Reply to a communication from the examining division | 10.12.1992 | Despatch of communication of intention to grant (Approval: No) | 31.03.1993 | Despatch of communication of intention to grant (Approval: later approval) | 07.04.1993 | Communication of intention to grant the patent | 11.06.1993 | Fee for grant paid | 11.06.1993 | Fee for publishing/printing paid | Opposition(s) | 14.07.1994 | No opposition filed within time limit [1994/40] | Fees paid | Renewal fee | 25.01.1991 | Renewal fee patent year 03 | 09.07.1992 | Renewal fee patent year 04 | 12.07.1993 | Renewal fee patent year 05 |
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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. | Cited in | International search | [A] Japanese Journal of Applied Physics, Volume 27, Number 5, June 1988, YUMADA et al., "Pb Introduction to the High-Tc Superconductor Bi-Sr-Ca-CuO", page L996-L998. [A] | [A] Physical Review B, Volume 35, Number 10, 01 April 1987, GUBSER et al., "Superconducting phase transitions in La-M-Cu-O layered perovskite system, M= La, Ba, Sr and Pb", page 5350. [A] | [A] American Vacuum Society : Series 3, 06 November 1987, RICHERT et al., "Atomic Substitution in YBa2Cu3O7 Modification of Structure", pages 277-283. [A] | [A] Nature, Volume 332, 10 March 1988, SHENG et al., "Bulk superconductivity at 120K in the Tl-Ca/Ba-Cu-O System", pages 138-139. [A] | [YP] Japanese Journal of Applied Physics, Volume 27, Number 11, November 1988, ITOH et al., "Preparation and Properties of Bulk Superconductors in the Tl-Pb-Sr-Ca-Cu-O System", pages L2052-L2054. [YP] | [YP] Japanese Journal of Applied Physics, Volume 27, Number 12, December 1988, TAI et al., "Bulk Superconductivity in the New Orthorhombic (Tl, Pb)-Ca-Sr-Cu-O System", pages L2287-L2288. [YP] | Examination | Physical Review B, volume 35, number 10, 01 April 1987, Gubser et al., "Superconducting phase transitions in La-M-Cu-O layered peroviskite system, M= La, Ba, Sr and Pb", pages 5350-5352 |