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EP0231949
European procedure
Extract from the Register of European Patents
EP About this file: EP0231949
| EP0231949 - Process to separate nitrogen and methane [Right-click to bookmark this link] | Status | Patent maintained as amended Status updated on 02.06.1995 Database last updated on 14.05.2024 | Most recent event Tooltip | 05.10.2005 | Change: Appeal number | Applicant(s) | For all designated states UNION CARBIDE CORPORATION 39 Old Ridgebury Road Danbury Connecticut 06817 / US | [N/P] |
| Former [1987/33] | For all designated states UNION CARBIDE CORPORATION 39 Old Ridgebury Road Danbury Connecticut 06817 / US | Inventor(s) | 01 /
Phahade, Ravindra Fulchand 126 October Lane North Tonawanda N.Y. 14120 / US | 02 /
Maloney, Joames Joseph 275 Willowgreen Drive Tonawanda N.Y. 14150 / US | 03 /
Handley, James Richard 117 Ayrault Drive Amerst, N.Y. 14120 / US | [1987/33] | Representative(s) | Schwan, Gerhard Schwan Schwan Schorer Patentanwälte Bauerstrasse 22 80796 München / DE | [N/P] |
| Former [1987/33] | Schwan, Gerhard, Dipl.-Ing. Elfenstrasse 32 D-81739 München / DE | Application number, filing date | 87101653.1 | 06.02.1987 | [1987/33] | Priority number, date | US19860827165 | 07.02.1986 Original published format: US 827165 | [1987/33] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0231949 | Date: | 12.08.1987 | Language: | EN | [1987/33] | Type: | B1 Patent specification | No.: | EP0231949 | Date: | 31.01.1990 | Language: | EN | [1990/05] | Type: | B2 New European patent specification | No.: | EP0231949 | Date: | 19.07.1995 | Language: | EN | [1995/29] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 18.06.1987 | Classification | IPC: | F25J3/02, F25J3/08, C07C7/04, C07C9/04 | [1987/33] | CPC: |
F25J3/0257 (EP,US);
C07C7/04 (EP,US);
F25J3/0209 (EP,US);
F25J3/0233 (EP,US);
F25J2200/08 (EP,US);
F25J2200/38 (EP,US);
F25J2200/70 (EP,US);
F25J2200/72 (EP,US);
F25J2200/74 (EP,US);
F25J2200/78 (EP,US);
F25J2205/04 (EP,US);
F25J2205/30 (EP);
| C-Set: |
C07C7/04, C07C9/04 (EP,US)
| Designated contracting states | DE, GB, NL [1987/33] | Title | German: | Stickstoff-Methan-Trennverfahren | [1987/33] | English: | Process to separate nitrogen and methane | [1987/33] | French: | Procédé de séparation de l'ozote du méthane | [1987/33] | Examination procedure | 27.08.1987 | Examination requested [1987/43] | 10.06.1988 | Despatch of a communication from the examining division (Time limit: M04) | 02.11.1988 | Despatch of a communication from the examining division (Time limit: M02) | 15.12.1988 | Reply to a communication from the examining division | 20.01.1989 | Despatch of communication of intention to grant (Approval: Yes) | 26.05.1989 | Communication of intention to grant the patent | 25.08.1989 | Fee for grant paid | 25.08.1989 | Fee for publishing/printing paid | Opposition(s) | Opponent(s) | 01
30.10.1990
12.11.1990
ADMISSIBLE Linde Aktiengesellschaft, Wiesbaden Zentrale Patentabteilung D-82049 Höllriegelskreuth / DE | 02
31.10.1990
06.12.1990
ADMISSIBLE KOCH Process Systems Inc. 20 Walkup Drive Westborough, Massachusetts 01581-5003 / US Opponent's representative Myerscough, Philip Boyd, et al, et al J.A.KEMP & CO. 14, South Square Gray's Inn London WC1R 5LX / GB | [1990/52] | 20.11.1990 | No. 02: Notification indicating deficiencies in the notice of opposition | 04.12.1990 | No. 02: Reply to notification indicating deficiencies in the notice of opposition | 10.12.1990 | Invitation to proprietor to file observations on the notice of opposition | 20.06.1991 | Reply of patent proprietor to notice(s) of opposition | 30.12.1991 | Despatch of communication that the patent will be revoked | 17.01.1995 | Despatch of interlocutory decision in opposition | 17.01.1995 | Legal effect of interlocutory decision in opposition | 05.04.1995 | Despatch of communication that the patent will be maintained as amended | 17.05.1995 | Fee for printing new specification paid | Appeal following opposition | 02.03.1992 | Appeal received No. T0195/92 | 30.04.1992 | Statement of grounds filed | 17.01.1995 | Result of appeal procedure: continuation of opposition procedure | 17.01.1995 | Date of oral proceedings | 30.01.1995 | Minutes of the oral proceedings despatched | Fees paid | Renewal fee | 22.12.1988 | Renewal fee patent year 03 | 04.12.1989 | 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]DE2122707 ; | [A]EP0068587 (UNION CARBIDE CORP [US]) | by applicant | - "Distillation", B.D. SMITH ET AL., Chemical Engineer's Handbook, MCGRAW-HILL BOOK COMPANY, pages 13 - 3 | - "Distillation", B. D. SMITH ET AL., Chemical Engineer's Handbook, MCGRAW-HILL BOOK COMPANY, pages 13 - 3 | - "Cryogenic Systems", BARRON, Air Separation Systems, MCGRAW-HILL, INC., (1966), page 230 | - B.D. SMITH ET AL., DISTILLATION, pages 13 - 3 | - BARRON, Cryogenic Systems, MCGRAW-HILL, INC., (1966), page 230 |