EP0692297 - Gas prepurification [Right-click to bookmark this link] | Status | The application is deemed to be withdrawn Status updated on 09.01.1998 Database last updated on 02.08.2024 | Most recent event Tooltip | 09.01.1998 | Application deemed to be withdrawn | published on 25.02.1998 [1998/09] | Applicant(s) | For all designated states PRAXAIR TECHNOLOGY, INC. 39 Old Ridgebury Road Danbury, CT 06810-5113 / US | [1996/03] | Inventor(s) | 01 /
Prasad, Ravi 12 Yardley Lane East Amherst (14051) New York / US | [1996/03] | Representative(s) | Schwan, Gerhard Schwan Schwan Schorer Patentanwälte Bauerstrasse 22 80796 München / DE | [N/P] |
Former [1996/03] | Schwan, Gerhard, Dipl.-Ing. Elfenstrasse 32 D-81739 München / DE | Application number, filing date | 95111089.9 | 14.07.1995 | [1996/03] | Priority number, date | US19940272992 | 15.07.1994 Original published format: US 272992 | [1996/03] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0692297 | Date: | 17.01.1996 | Language: | EN | [1996/03] | Type: | A3 Search report | No.: | EP0692297 | Date: | 23.10.1996 | [1996/43] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 04.09.1996 | Classification | IPC: | B01D53/22 | [1996/03] | CPC: |
B01D53/268 (EP);
B01D53/226 (EP);
B01D53/229 (EP)
| Designated contracting states | DE, FR, IT [1996/03] | Title | German: | Gasvorreinigung | [1996/03] | English: | Gas prepurification | [1996/03] | French: | Prepurification de gaz | [1996/03] | Examination procedure | 31.10.1996 | Examination requested [1997/01] | 22.04.1997 | Despatch of a communication from the examining division (Time limit: M04) | 02.09.1997 | Application deemed to be withdrawn, date of legal effect [1998/09] | 01.10.1997 | Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time [1998/09] | Fees paid | Renewal fee | 23.06.1997 | Renewal fee patent year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 | [DY]US4881953 (PRASAD RAVI [US], et al) [DY] 1-20 * column W *; | [Y]EP0463535 (UNION CARBIDE IND GASES TECH [US]) [Y] 1-20 * column 4, line 12 - column 7, line 55; figures 1,2 *; | [A]US4952219 (DIMARTINO SR STEPHEN P [US]) [A] 1-20 * column W *; | [A]US5240472 (SIRCAR SHIVAJI [US]) [A] 1-20 * column W * | by applicant | US5226932 | - R. JAIN, Process for preventing Degradation of Gas Separation Membranes Due to Oil Vapors, LEXINGTON, KENTUCKY, NORTH AMERICAN MEMBRANE SOCIETY, (19920517) * Conference in Lexington, Kentucky; May 17-20, 1992 * |