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EP0171451
European procedure
Extract from the Register of European Patents
EP About this file: EP0171451
| EP0171451 - Improved N-paraffin-isoparaffin separation process using wash of recycle purge gas [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 29.03.1989 Database last updated on 26.03.2025 | Most recent event Tooltip | 29.03.1989 | No opposition filed within time limit | published on 17.05.1989 [1989/20] | Applicant(s) | For all designated states UNION CARBIDE CORPORATION 39 Old Ridgebury Road Danbury Connecticut 06817 / US | [N/P] |
| Former [1986/08] | For all designated states UNION CARBIDE CORPORATION 39 Old Ridgebury Road Danbury Connecticut 06817 / US | Inventor(s) | 01 /
Gray, Robert Lawton, Jr. 6 Steiner Drive Mahopac, NY 10541 / US | 02 /
Holcombe, Thomas Charles 352 Central Park Avenue Scarsdale, NY 10583 / US | [1988/21] |
| Former [1986/08] | 01 /
Gray, Robert Lawton, Jr. 6 Steiner Drive Mahopac New York 10541 / US | ||
| 02 /
Holcombe, Thomas Charles 352 Central Park Avenue Scarsdale New York 10583 / US | Representative(s) | Eggert, Hans-Gunther Gesthuysen, von Rohr & Eggert Postfach 10 13 54 45013 Essen / DE | [N/P] |
| Former [1986/08] | Eggert, Hans-Gunther, Dr. Räderscheidtstrasse 1 D-50935 Köln / DE | Application number, filing date | 84109721.5 | 16.08.1984 | [1986/08] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0171451 | Date: | 19.02.1986 | Language: | EN | [1986/08] | Type: | B1 Patent specification | No.: | EP0171451 | Date: | 25.05.1988 | Language: | EN | [1988/21] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 04.06.1985 | Classification | IPC: | C07C7/13, C10G25/03 | [1986/08] | CPC: |
C10G25/03 (EP,US);
C07C7/13 (EP,US)
| C-Set: |
C07C7/13, C07C9/00 (EP,US)
| Designated contracting states | CH, DE, FR, GB, IT, LI, NL, SE [1986/08] | Title | German: | Verfahren zur Trennung von n-Paraffinen/Isoparaffinen bei dem das rezyklierte Verdrängungsgas gewaschen wird | [1986/08] | English: | Improved N-paraffin-isoparaffin separation process using wash of recycle purge gas | [1986/08] | French: | Procédé pour la séparation n-paraffines/isoparaffines comprenant le lavage du gaz de purge recyclé | [1986/08] | Examination procedure | 19.03.1986 | Examination requested [1986/21] | 20.11.1986 | Despatch of a communication from the examining division (Time limit: M04) | 27.03.1987 | Reply to a communication from the examining division | 17.09.1987 | Despatch of communication of intention to grant (Approval: Yes) | 03.11.1987 | Communication of intention to grant the patent | 23.01.1988 | Fee for grant paid | 23.01.1988 | Fee for publishing/printing paid | Opposition(s) | 28.02.1989 | No opposition filed within time limit [1989/20] | Fees paid | Renewal fee | 18.06.1986 | Renewal fee patent year 03 | 22.05.1987 | 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 | [AD]US4176053 (HOLCOMBE THOMAS C [US]) |