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EP0429423
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EP About this file: EP0429423
| EP0429423 - Process for the treatment of hot waste gas containing hydrogen chloride [Right-click to bookmark this link] | Status | The application has been refused Status updated on 08.12.1994 Database last updated on 19.10.2024 | Most recent event Tooltip | 08.12.1994 | Refusal of application | published on 25.01.1995 [1995/04] | Applicant(s) | For all designated states International Technology Corporation 312 Directors Drive Knoxville Tennessee 37923 / US | [N/P] |
| Former [1991/22] | For all designated states International Technology Corporation 312 Directors Drive Knoxville Tennessee 37923 / US | Inventor(s) | 01 /
Mak, Kai K. 628 Briar Gate Lane Concord, Tennessee 37922 / US | 02 /
Novak, Rudy G. 721 Westborough Road Knoxville, Tennessee 37909 / US | [1991/22] | Representative(s) | Wiklund, Erik, et al AWAPATENT AB, Box 5117 200 71 Malmö / SE | [N/P] |
| Former [1991/22] | Wiklund, Erik, et al AWAPATENT AB, Box 5117 S-200 71 Malmö / SE | Application number, filing date | 90850377.4 | 20.11.1990 | [1991/22] | Priority number, date | US19890439629 | 20.11.1989 Original published format: US 439629 | [1991/22] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0429423 | Date: | 29.05.1991 | Language: | EN | [1991/22] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 15.03.1991 | Classification | IPC: | B01D53/34 | [1991/22] | CPC: |
B01D53/68 (EP,US)
| Designated contracting states | CH, DE, ES, GB, IT, LI [1991/22] | Title | German: | Verfahren zur Behandlung von heissen Abgasen, die Chlorwasserstoff enthalten | [1991/22] | English: | Process for the treatment of hot waste gas containing hydrogen chloride | [1991/22] | French: | Procédé pour le traitement des gaz d'échappement chauds contenant des gaz hydrochloriques | [1991/22] | File destroyed: | 15.01.2000 | Examination procedure | 26.11.1991 | Examination requested [1992/04] | 15.04.1993 | Despatch of a communication from the examining division (Time limit: M04) | 11.08.1993 | Reply to a communication from the examining division | 24.03.1994 | Despatch of communication of intention to grant (Approval: ) | 31.08.1994 | Despatch of communication that the application is refused, reason: formalities examination [1995/04] | 10.09.1994 | Application refused, date of legal effect [1995/04] | Fees paid | Renewal fee | 06.11.1992 | Renewal fee patent year 03 | 04.11.1993 | 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. | Documents cited: | Search | [X]US4322393 (GLEASON ROBERT J, et al); | [X]EP0046387 (DAVY MCKEE MINERALS & METALS [GB]); | [A]US3826816 (MC CORMICK W); | [A]DE3623983 (LEIPZIG CHEMIEANLAGEN [DD]); | [A]DE3623982 (LEIPZIG CHEMIEANLAGEN [DD]); | [A]DE3124671 (WESTFAEL ELEKT WERKE [DE]); | [A]FR2290943 (KUREHA CHEMICAL IND CO LTD [JP]); | [A]GB2006030 (CHIYODA CHEM ENG CONSTRUCT CO) |