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EP0335418
European procedure
Extract from the Register of European Patents
EP About this file: EP0335418
| EP0335418 - Membrane process and system for nitrogen production [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 26.11.1994 Database last updated on 03.09.2024 | Most recent event Tooltip | 26.11.1994 | No opposition filed within time limit | published on 18.01.1995 [1995/03] | Applicant(s) | For all designated states PRAXAIR TECHNOLOGY, INC. 39 Old Ridgebury Road Danbury, CT 06810-5113 / US | [1993/23] |
| Former [1989/40] | For all designated states UNION CARBIDE CORPORATION 39 Old Ridgebury Road Danbury Connecticut 06817 / US | Inventor(s) | 01 /
Campbell, Michael Joseph 5930 Shimerville Road Clarence Center, N.Y. (14032) / US | [1989/40] | Representative(s) | Schwan, Gerhard Schwan Schwan Schorer Patentanwälte Bauerstrasse 22 80796 München / DE | [N/P] |
| Former [1989/40] | Schwan, Gerhard, Dipl.-Ing. Elfenstrasse 32 D-81739 München / DE | Application number, filing date | 89105710.1 | 31.03.1989 | [1989/40] | Priority number, date | US19880176658 | 01.04.1988 Original published format: US 176658 | [1989/40] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0335418 | Date: | 04.10.1989 | Language: | EN | [1989/40] | Type: | A3 Search report | No.: | EP0335418 | Date: | 31.10.1990 | Language: | EN | [1990/44] | Type: | B1 Patent specification | No.: | EP0335418 | Date: | 26.01.1994 | Language: | EN | [1994/04] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 13.09.1990 | Classification | IPC: | C01B21/04, B01D53/22, F25J3/00 | [1989/40] | CPC: |
B01D53/047 (EP,US);
C01B21/04 (KR);
B01D53/226 (EP,US);
B01D53/229 (EP,US);
C01B21/0494 (EP,US);
B01D2256/10 (EP,US);
B01D2259/416 (EP,US);
C01B2210/0006 (EP,US);
C01B2210/0014 (EP,US);
C01B2210/0045 (EP,US)
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| Designated contracting states | BE, DE, ES, FR, IT [1989/40] | Title | German: | Membran-Verfahren und System für die Herstellung von Stickstoff | [1989/40] | English: | Membrane process and system for nitrogen production | [1989/40] | French: | Procédé à membrane et système pour la production d'azote | [1989/40] | Examination procedure | 31.12.1990 | Examination requested [1991/10] | 11.05.1992 | Despatch of a communication from the examining division (Time limit: M04) | 21.09.1992 | Reply to a communication from the examining division | 14.04.1993 | Despatch of communication of intention to grant (Approval: Yes) | 23.07.1993 | Communication of intention to grant the patent | 22.10.1993 | Fee for grant paid | 22.10.1993 | Fee for publishing/printing paid | Opposition(s) | 27.10.1994 | No opposition filed within time limit [1995/03] | Fees paid | Renewal fee | 13.12.1990 | Renewal fee patent year 03 | 09.12.1991 | Renewal fee patent year 04 | 15.02.1993 | 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. | Documents cited: | Search | [A]EP0075663 (LEYBOLD HERAEUS GMBH & CO KG [DE]); | [A]GB2160439 (BOC GROUP PLC) |