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EP0561109
European procedure
Extract from the Register of European Patents
EP About this file: EP0561109
| EP0561109 - Cryogenic rectification system for producing nitrogen and ultra high purity oxygen [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 25.10.1996 Database last updated on 03.09.2024 | Most recent event Tooltip | 25.10.1996 | No opposition filed within time limit | published on 11.12.1996 [1996/50] | Applicant(s) | For all designated states PRAXAIR TECHNOLOGY, INC. 39 Old Ridgebury Road Danbury, CT 06810-5113 / US | [1995/01] |
| Former [1993/38] | For all designated states PRAXAIR TECHNOLOGY, INC. 39 Old Ridgebury Road Danbury, CT 06810-5113 / US | Inventor(s) | 01 /
Cheung, Harry 6 Heathwood Road Williamsville, New York 14221 / US | [1993/38] | Representative(s) | Schwan, Gerhard Schwan Schwan Schorer Patentanwälte Bauerstrasse 22 80796 München / DE | [N/P] |
| Former [1993/38] | Schwan, Gerhard, Dipl.-Ing. Elfenstrasse 32 D-81739 München / DE | Application number, filing date | 93100306.5 | 11.01.1993 | [1993/38] | Priority number, date | US19920854094 | 19.03.1992 Original published format: US 854094 | [1993/38] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0561109 | Date: | 22.09.1993 | Language: | EN | [1993/38] | Type: | B1 Patent specification | No.: | EP0561109 | Date: | 20.12.1995 | Language: | EN | [1995/51] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 20.07.1993 | Classification | IPC: | F25J3/04 | [1993/38] | CPC: |
F25J3/0443 (EP,KR,US);
F25J2200/34 (EP,KR,US);
F25J2200/50 (EP,KR,US);
F25J2215/42 (KR);
F25J2215/56 (EP,KR,US);
F25J2220/52 (EP,KR,US);
| Designated contracting states | BE, DE, ES, FR, GB, IT, NL [1993/38] | Title | German: | Kryogenisches Rektifikationsverfahren zur Herstellung von Stickstoff und reinstem Sauerstoff | [1995/51] | English: | Cryogenic rectification system for producing nitrogen and ultra high purity oxygen | [1993/38] | French: | Procédé de rectification cryogénique pour la production de l'azote et de l'oxygène à pureté ultra haute | [1993/38] |
| Former [1993/38] | Kryogenisches Rektifikationsverfahren zur Herstellung von Stickstoff und extrem reinem Sauerstoff | Examination procedure | 07.10.1993 | Examination requested [1993/48] | 26.01.1995 | Despatch of a communication from the examining division (Time limit: M04) | 08.03.1995 | Reply to a communication from the examining division | 16.05.1995 | Despatch of communication of intention to grant (Approval: Yes) | 20.06.1995 | Communication of intention to grant the patent | 29.08.1995 | Fee for grant paid | 29.08.1995 | Fee for publishing/printing paid | Opposition(s) | 21.09.1996 | No opposition filed within time limit [1996/50] | Fees paid | Renewal fee | 27.12.1994 | 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. | Lapses during opposition Tooltip | DE | 21.03.1996 | [1996/28] | Documents cited: | Search | [X]US4560397 (CHEUNG HARRY [US]); | [A]US4439220 (OLSZEWSKI WALTER J [US], et al) |