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EP0253350
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EP About this file: EP0253350
| EP0253350 - Ammonia synthesis converter [Right-click to bookmark this link] | Status | The application has been refused Status updated on 20.08.1991 Database last updated on 26.03.2026 | Most recent event Tooltip | 07.07.2007 | Change - inventor | published on 08.08.2007 [2007/32] | Applicant(s) | For all designated states The M. W. Kellogg Company Three Greenway Plaza East Houston Texas 77046-0395 / US | [N/P] |
| Former [1988/03] | For all designated states The M. W. Kellogg Company Three Greenway Plaza East Houston Texas 77046-0395 / US | Inventor(s) | 01 /
Noe, Stephen A. 2800 Jeanetta, No. 1408 Houston Texas 77063 / US | [1988/03] | Representative(s) | Weickmann, Heinrich, et al Weickmann & Weickmann Patentanwälte Postfach 86 08 20 81635 München / DE | [N/P] |
| Former [1988/03] | Weickmann, Heinrich, Dipl.-Ing., et al Patentanwälte H. Weickmann, Dr. K. Fincke F.A. Weickmann, B. Huber Dr. H. Liska, Dr. J. Prechtel, Dr. B. Böhm Postfach 86 08 20 D-81635 München / DE | Application number, filing date | 87110095.4 | 13.07.1987 | [1988/03] | Priority number, date | US19860885629 | 15.07.1986 Original published format: US 885629 | [1988/03] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0253350 | Date: | 20.01.1988 | Language: | EN | [1988/03] | Type: | A3 Search report | No.: | EP0253350 | Date: | 05.10.1988 | Language: | EN | [1988/40] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 16.08.1988 | Classification | IPC: | B01J8/04, C01C1/04 | [1988/03] | CPC: |
C01C1/0423 (EP);
B01J8/0469 (EP);
B01J8/0496 (EP);
B01J2208/00194 (EP);
Y02P20/52 (EP)
| Designated contracting states | BE, DE, ES, FR, GB, IT, NL [1988/03] | Title | German: | Ammoniaksynthesekonverter | [1988/03] | English: | Ammonia synthesis converter | [1988/03] | French: | Convertisseur de synthèse d'ammoniac | [1988/03] | File destroyed: | 02.03.1998 | Examination procedure | 05.07.1988 | Examination requested [1988/36] | 07.07.1989 | Despatch of a communication from the examining division (Time limit: M06) | 05.12.1989 | Reply to a communication from the examining division | 20.02.1990 | Despatch of a communication from the examining division (Time limit: M04) | 21.06.1990 | Reply to a communication from the examining division | 31.10.1990 | Despatch of communication of intention to grant (Approval: ) | 03.05.1991 | Despatch of communication that the application is refused, reason: formalities examination [1991/41] | 13.05.1991 | Application refused, date of legal effect [1991/41] | Fees paid | Renewal fee | 16.06.1989 | Renewal fee patent year 03 | 20.06.1990 | Renewal fee patent year 04 | 02.01.1991 | 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] CHEMICAL ENGINEERING PROGRESS, vol. 68, no. 1, January 1972, pages 62-66; G.P. ESCHENBRENNER et al.: "A new high capapcity ammonia converter" [A] |