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Extract from the Register of European Patents

EP About this file: EP0253409

EP0253409 - Anhydrous diluents for the propylene oxidation reaction to acrolein and acrolein oxidation to acrylic acid [Right-click to bookmark this link]
StatusPatent maintained as amended
Status updated on  23.04.1999
Database last updated on 29.03.2025
Most recent event   Tooltip05.10.2005Change: Appeal number 
Applicant(s)For all designated states
UNION CARBIDE CORPORATION
39 Old Ridgebury Road Danbury
Connecticut 06817 / US
[N/P]
Former [1988/03]For all designated states
UNION CARBIDE CORPORATION
39 Old Ridgebury Road
Danbury Connecticut 06817 / US
Inventor(s)01 / Etzkorn, William George
5001 Ann Lee Drive
Cross Lanes West Virginia 25313 / US
02 / Harkreader, Gordon Gene
1506 Brentwood Road
Charleston West Virginia 25314 / US
[1988/03]
Representative(s)Barz, Peter, et al
Meissner Bolte & Partner GbR
Postfach 86 06 24
81633 München / DE
[N/P]
Former [1995/24]Barz, Peter, Dr., et al
Patentanwalt Kaiserplatz 2
D-80803 München / DE
Former [1988/03]Weinhold, Peter, Dr.
Patentanwälte Dr. Weinhold, Dannenberg, Dr. Gudel, Schubert Siegfriedstrasse 8
D-80803 München / DE
Application number, filing date87110385.917.07.1987
[1988/03]
Priority number, dateUS1986088656217.07.1986         Original published format: US 886562
[1988/03]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0253409
Date:20.01.1988
Language:EN
[1988/03]
Type: A3 Search report 
No.:EP0253409
Date:05.10.1988
Language:EN
[1988/40]
Type: B1 Patent specification 
No.:EP0253409
Date:27.11.1991
Language:EN
[1991/48]
Type: B2 New European patent specification 
No.:EP0253409
Date:09.06.1999
Language:EN
[1999/23]
Search report(s)(Supplementary) European search report - dispatched on:EP16.08.1988
ClassificationIPC:C07C57/055, C07C57/05
[1988/03]
CPC:
C07C45/35 (EP); C07C51/252 (EP)
C-Set:
C07C45/35, C07C47/22 (EP);
C07C51/252, C07C57/04 (EP)
Designated contracting statesAT,   BE,   CH,   DE,   ES,   FR,   GB,   GR,   IT,   LI,   LU,   NL,   SE [1988/03]
TitleGerman:Wässerige Verdünnungsmittel für die Oxydation von Propylen in Acrolein und von Acrolein in Acrylsäure[1988/03]
English:Anhydrous diluents for the propylene oxidation reaction to acrolein and acrolein oxidation to acrylic acid[1988/03]
French:Diluants anhydres pour les réactions oxydatives de propylène en acroléine et d'acroléine en acide acrylique[1988/03]
Examination procedure09.01.1989Examination requested  [1989/10]
26.04.1990Despatch of a communication from the examining division (Time limit: M06)
11.10.1990Reply to a communication from the examining division
06.03.1991Despatch of communication of intention to grant (Approval: Yes)
29.04.1991Communication of intention to grant the patent
25.06.1991Fee for grant paid
25.06.1991Fee for publishing/printing paid
Opposition(s)Opponent(s)01  28.03.1992  30.06.1992  ADMISSIBLE
BASF Aktiengesellschaft
-Patentabteilung - C6- Carl-Bosch-Strasse 38
D-67056 Ludwigshafen / DE
 [N/P]
Former [1992/21]
Opponent(s)01  28.03.1992  30.06.1992  ADMISSIBLE
BASF Aktiengesellschaft, Ludwigshafen
-Patentabteilung - C6- Carl-Bosch-Strasse 38
D-67056 Ludwigshafen / DE
02.10.1992Invitation to proprietor to file observations on the notice of opposition
13.04.1993Reply of patent proprietor to notice(s) of opposition
11.01.1994Date of oral proceedings
25.01.1994Despatch of minutes of oral proceedings
26.01.1994Despatch of interlocutory decision in opposition
11.08.1998Legal effect of interlocutory decision in opposition
21.01.1999Despatch of communication that the patent will be maintained as amended
23.03.1999Fee for printing new specification paid
Appeal following opposition19.03.1994Appeal received No.  T0259/94
17.05.1994Statement of grounds filed
11.08.1998Result of appeal procedure: appeal of the opponent was rejected
11.08.1998Date of oral proceedings
Fees paidRenewal fee
21.06.1989Renewal fee patent year 03
18.06.1990Renewal fee patent year 04
19.06.1991Renewal fee patent year 05
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Lapses during opposition  TooltipCH27.11.1991
LI27.11.1991
SE27.11.1991
LU31.07.1992
[1999/52]
Former [1992/27]CH27.11.1991
LI27.11.1991
SE27.11.1991
Former [1992/24]SE27.11.1991
Documents cited:Search[A]DE2056614  ;
 [A]DE2436818  (BASF AG [DE]);
 [A]DE2547536  (ASAHI GLASS CO LTD);
 [AD]US4147885  (SHIMIZU NOBORU, et al)
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.