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Extract from the Register of European Patents

EP About this file: EP0234251

EP0234251 - Method and device for detecting combustible gas [Right-click to bookmark this link]
StatusOpposition rejected
Status updated on  02.05.1997
Database last updated on 20.12.2024
Most recent event   Tooltip05.10.2005Change: Appeal number 
Applicant(s)For all designated states
Drägerwerk Aktiengesellschaft
23542 Lübeck / DE
[N/P]
Former [1987/36]For all designated states
Drägerwerk Aktiengesellschaft
D-23542 Lübeck / DE
Inventor(s)01 / Schuck, Hansjochen
Krogdiek 13
D-2406 Stockelsdorf / DE
02 / Iredale, Peter Julian Dr.
17 Woodkirk Close
Netherfield Park Seghill NE23 Tz / GB
03 / Johnson, Alan
11 Bedburn Avenue
Wear View Estate Sunderland / GB
[1987/36]
Application number, filing date87100641.719.01.1987
[1987/36]
Priority number, dateGB1986000138821.01.1986         Original published format: GB 8601388
[1987/36]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0234251
Date:02.09.1987
Language:DE
[1987/36]
Type: A3 Search report 
No.:EP0234251
Date:21.06.1989
Language:DE
[1989/25]
Type: B1 Patent specification 
No.:EP0234251
Date:01.04.1992
Language:DE
[1992/14]
Search report(s)(Supplementary) European search report - dispatched on:EP02.05.1989
ClassificationIPC:G01N27/16, G01N27/14, G01N33/00
[1989/26]
CPC:
G01N33/0062 (EP,US); G01N27/14 (EP,US); Y10T436/214 (EP,US);
Y10T436/218 (EP,US)
Former IPC [1987/36]G01N27/16
Designated contracting statesDE,   FR,   NL [1987/36]
TitleGerman:Verfahren und Vorrichtung zum Nachweis von brennbaren Gasen[1987/36]
English:Method and device for detecting combustible gas[1987/36]
French:Procédé et dispositif pour déceler des gaz combustibles[1987/36]
Examination procedure02.02.1987Examination requested  [1987/36]
14.02.1991Despatch of a communication from the examining division (Time limit: M04)
25.05.1991Reply to a communication from the examining division
09.08.1991Despatch of communication of intention to grant (Approval: Yes)
26.08.1991Communication of intention to grant the patent
11.09.1991Fee for grant paid
11.09.1991Fee for publishing/printing paid
Opposition(s)Opponent(s)01  04.01.1993  26.01.1993  ADMISSIBLE
Gesellschaft für Gerätebau mit beschränkter Haftung
Klönnestrasse 99
4600 Dortmund 1 / DE
Opponent's representative
Gesthuysen, Hans Dieter
Patentanwälte
Gesthuysen, von Rohr & Eggert
Postfach 10 13 54
45013 Essen / DE
 [N/P]
Former [1993/09]
Opponent(s)01  04.01.1993  26.01.1993  ADMISSIBLE
Gesellschaft für Gerätebau mit beschränkter Haftung
Klönnestrasse 99
4600 Dortmund 1 / DE
Opponent's representative
Gesthuysen, Hans Dieter, Dipl.-Ing.
Patentanwälte Gesthuysen, von Rohr & Weidener, Postfach 10 13 54
D-45013 Essen / DE
23.08.1994Invitation to proprietor to file observations on the notice of opposition
05.11.1994Reply of patent proprietor to notice(s) of opposition
04.07.1995Date of oral proceedings
26.07.1995Despatch of minutes of oral proceedings
13.03.1997Legal effect of rejection of opposition [1997/25]
13.03.1997Date of despatch of rejection of opposition
Appeal following opposition15.09.1995Appeal received No.  T0789/95
15.09.1995Statement of grounds filed
13.03.1997Result of appeal procedure: maintenance in unamended form
13.03.1997Date of oral proceedings
20.03.1997Minutes of the oral proceedings despatched
Fees paidRenewal fee
03.12.1988Renewal fee patent year 03
20.01.1990Renewal fee patent year 04
27.12.1990Renewal fee patent year 05
22.01.1992Renewal fee patent year 06
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Documents cited:Search[AD]DE1673306  (WESTFAELISCHE BERGGEWERKSCHAFT);
 [A]FR2330001  (CONSOLIDATION COAL CO [US]);
 [A]EP0080406  (CHARBONNAGES DE FRANCE [FR])
 [Y]  - PATENT ABSTRACTS OF JAPAN
 [YP]  - SOVIET INVENTIONS ILLUSTRATED
Examination   - PATENT ABSTRACTS OF JAPAN, Band 6, nr. 53 (P-109)(931), 8 April 1982& JP A 56168543
    - SOVIET INVENTIONS ILLUSTRATED, Sektion P1Q, Woche 8621, 6 Juni 1986, Derwent Publications Ltd., London, GB, Klasse 503, Nr. 86136264/21; & SU A 1187051
by applicantJPS56168543
 SU1187051
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.