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EP0305867
European procedure
Extract from the Register of European Patents
EP About this file: EP0305867
| EP0305867 - Hydrogen purification process [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 30.04.1992 Database last updated on 22.08.2024 | Most recent event Tooltip | 30.04.1992 | No opposition filed within time limit | published on 17.06.1992 [1992/25] | Applicant(s) | For all designated states ETHYL CORPORATION Ethyl Tower 451 Florida Boulevard Baton Rouge Louisiana 70801 / US | [N/P] |
| Former [1989/10] | For all designated states ETHYL CORPORATION Ethyl Tower 451 Florida Boulevard Baton Rouge Louisiana 70801 / US | Inventor(s) | 01 /
Allen, Robert Hall 5841 Tarrytown Avenue Baton Rouge Louisiana 70808 / US | [1989/10] | Representative(s) | Sandmair, Kurt, et al Patentanwälte Schwabe, Sandmair, Marx Postfach 86 02 45 81629 München / DE | [N/P] |
| Former [1989/10] | Sandmair, Kurt, Dr. Dr., et al Patentanwälte Schwabe, Sandmair, Marx Postfach 86 02 45 D-81629 München / DE | Application number, filing date | 88113730.1 | 23.08.1988 | [1989/10] | Priority number, date | US19870092638 | 03.09.1987 Original published format: US 92638 | [1989/10] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0305867 | Date: | 08.03.1989 | Language: | EN | [1989/10] | Type: | A3 Search report | No.: | EP0305867 | Date: | 02.08.1989 | Language: | EN | [1989/31] | Type: | B1 Patent specification | No.: | EP0305867 | Date: | 26.06.1991 | Language: | EN | [1991/26] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 12.06.1989 | Classification | IPC: | C01B3/56, C01B33/02, C01B31/08 | [1989/28] | CPC: |
C01B3/56 (EP,KR,US);
C01B32/36 (EP,US);
C01B33/029 (EP,US);
C01B2203/043 (EP,US);
C01B2203/0465 (EP,US);
C01B2203/048 (EP,US)
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| Former IPC [1989/10] | C01B3/56 | Designated contracting states | BE, DE, FR, GB, IT [1991/23] |
| Former [1989/10] | AT, BE, CH, DE, ES, FR, GB, GR, IT, LI, LU, NL, SE | Title | German: | Verfahren zur Reinigung von Wasserstoff | [1989/10] | English: | Hydrogen purification process | [1989/10] | French: | Procédé de purification d'hydrogène | [1989/10] | Examination procedure | 19.10.1989 | Examination requested [1989/51] | 07.09.1990 | Despatch of communication of intention to grant (Approval: Yes) | 12.12.1990 | Communication of intention to grant the patent | 28.02.1991 | Fee for grant paid | 28.02.1991 | Fee for publishing/printing paid | Opposition(s) | 27.03.1992 | No opposition filed within time limit [1992/25] | Fees paid | Renewal fee | 19.07.1990 | Renewal fee patent year 03 |
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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]JP60169078 ; | [A]SU1430020 ; | [A]GB262455 (IG FARBENINDUSTRIE AG) | [A] - CHEMICAL ABSTRACTS, vol. 104, no. 12, 24th March 1986, page 173, abstract no. 91472k, Columbus, Ohio, US; & JP-A-60 169 078 (HITACHI LTD) 01-09-1985, & JP60169078 A 00000000 | [A] - CHEMICAL ABSTRACTS, vol. 57, no. 3, 6th August 1962, column 3250B, third abstract, Columbus, Ohio, US; & SU-A-1 430 020 (L.I. EFIMOV et al.) 10-01-1962, & SU1430020 A 00000000 |