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EP0142347
European procedure
Extract from the Register of European Patents
EP About this file: EP0142347
| EP0142347 - Process for preparing type L zeolites by nucleating technique [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 29.12.1992 Database last updated on 11.04.2026 | Most recent event Tooltip | 29.12.1992 | No opposition filed within time limit | published on 17.02.1993 [1993/07] | Applicant(s) | For all designated states EXXON RESEARCH AND ENGINEERING COMPANY P.O.Box 390 180 Park Avenue Florham Park New Jersey 07932-0390 / US | [N/P] |
| Former [1985/21] | For all designated states EXXON RESEARCH AND ENGINEERING COMPANY P.O.Box 390, 180 Park Avenue Florham Park, New Jersey 07932-0390 / US | Inventor(s) | 01 /
Vaughan, David E. W. Box 596, RD 5 Flemington New Jersey 08822 / US | [1985/21] | Representative(s) | Sexton, Jane Helen, et al J A Kemp 14 South Square Gray's Inn London WC1R 5JJ / GB | [N/P] |
| Former [1990/45] | Sexton, Jane Helen, et al J.A. KEMP & CO. 14 South Square Gray's Inn London WC1R 5LX / GB | ||
| Former [1985/21] | Northover, Robert Frank ESSO Chemical Limited Esso Chemical Research Centre P.O. Box 1 Abingdon Oxfordshire, OX13 6BB / GB | Application number, filing date | 84307758.7 | 09.11.1984 | [1985/21] | Priority number, date | US19830550890 | 10.11.1983 Original published format: US 550890 | [1985/21] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0142347 | Date: | 22.05.1985 | Language: | EN | [1985/21] | Type: | A3 Search report | No.: | EP0142347 | Date: | 11.11.1987 | Language: | EN | [1987/46] | Type: | B1 Patent specification | No.: | EP0142347 | Date: | 26.02.1992 | Language: | EN | [1992/09] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 21.09.1987 | Classification | IPC: | C01B33/34 | [1992/09] | CPC: |
C01B39/32 (EP)
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| Former IPC [1985/21] | C01B33/28 | Designated contracting states | AT, BE, CH, DE, FR, GB, IT, LI, LU, NL, SE [1985/21] | Title | German: | Verfahren zur Herstellung von Zeolithen des L-Typs durch Nuklear-Technik | [1985/21] | English: | Process for preparing type L zeolites by nucleating technique | [1985/21] | French: | Procédé pour la préparation de zéolites du type L par technique nucléaire | [1985/21] | Examination procedure | 26.11.1984 | Examination requested [1985/21] | 18.10.1988 | Despatch of a communication from the examining division (Time limit: M08) | 19.06.1989 | Reply to a communication from the examining division | 14.12.1989 | Despatch of a communication from the examining division (Time limit: M06) | 12.06.1990 | Reply to a communication from the examining division | 02.05.1991 | Despatch of communication of intention to grant (Approval: Yes) | 16.08.1991 | Communication of intention to grant the patent | 07.11.1991 | Fee for grant paid | 07.11.1991 | Fee for publishing/printing paid | Opposition(s) | 27.11.1992 | No opposition filed within time limit [1993/07] | Fees paid | Renewal fee | 18.09.1986 | Renewal fee patent year 03 | 09.09.1987 | Renewal fee patent year 04 | 14.09.1988 | Renewal fee patent year 05 | 29.09.1989 | Renewal fee patent year 06 | 20.09.1990 | Renewal fee patent year 07 | 23.09.1991 | Renewal fee patent year 08 |
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