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Extract from the Register of European Patents

EP About this file: EP0470368

EP0470368 - Method and circuit for inductive measuring of conductivity of liquids [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  19.12.1997
Database last updated on 15.06.2024
Most recent event   Tooltip07.12.2007Lapse of the patent in a contracting state
Updated state(s): FR		published on 09.01.2008  [2008/02]
Applicant(s)For all designated states
Schilling Chemie GmbH u. Produktion KG
Steinbeisstrasse 20-22
D-71691 Freiberg / DE
[N/P]
Former [1997/03]For all designated states
Schilling Chemie GmbH u. Produktions KG
Steinbeisstrasse 20-22
D-71691 Freiberg / DE
Former [1992/07]For all designated states
Schilling, Gerhard
Eichendorffstrasse 117
D-71665 Vaihingen / DE
Inventor(s)01 / Dorsch, Manfred, Prof.Dipl.-Ing.
Hauptstrasse 90
W-6962 Adelsheim / DE
02 / Szulerecki, Gregor Alexander, Dipl.-Ing.
Leibl-Strasse 27
W-7100 Heilbronn / DE
03 / Haak, Kurt
Schulstrasse 42
W-7129 Ilsfeld-Auenstein / DE
[1992/07]
Representative(s)Clemens, Gerhard
Patentanwaltskanzlei
Müller, Clemens & Hach
Lerchenstrasse 56
74074 Heilbronn / DE
[N/P]
Former [1994/09]Clemens, Gerhard, Dr.-Ing.
Patentanwaltskanzlei Müller, Clemens & Hach Lerchenstrasse 56
D-74074 Heilbronn / DE
Former [1992/07]Hach, Hans Karl, Dr.
Patentanwaltskanzlei Müller, Clemens & Hach, Lerchenstrasse 56
D-74074 Heilbronn / DE
Application number, filing date91110995.703.07.1991
[1992/07]
Priority number, dateDE1990402509308.08.1990         Original published format: DE 4025093
[1992/07]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0470368
Date:12.02.1992
Language:DE
[1992/07]
Type: A3 Search report 
No.:EP0470368
Date:08.09.1993
Language:DE
[1993/36]
Type: B1 Patent specification 
No.:EP0470368
Date:12.02.1997
Language:DE
[1997/07]
Search report(s)(Supplementary) European search report - dispatched on:EP20.07.1993
ClassificationIPC:G01N27/02, G01R27/22
[1992/07]
CPC:
G01R27/22 (EP); G01N27/023 (EP)
Designated contracting statesAT,   BE,   CH,   DE,   ES,   FR,   GB,   IT,   LI,   NL [1992/07]
TitleGerman:Verfahren und Schaltung zur induktiven Messung der Leitfähigkeit in Flüssigkeiten[1992/07]
English:Method and circuit for inductive measuring of conductivity of liquids[1992/07]
French:Procédé et circuit pour la mesure par induction de la conductivité dans les liquides[1992/07]
Examination procedure31.12.1992Examination requested  [1993/09]
05.07.1995Despatch of a communication from the examining division (Time limit: M04)
17.10.1995Reply to a communication from the examining division
04.03.1996Despatch of communication of intention to grant (Approval: Yes)
08.07.1996Communication of intention to grant the patent
13.09.1996Fee for grant paid
13.09.1996Fee for publishing/printing paid
Opposition(s)13.11.1997No opposition filed within time limit [1998/06]
Fees paidRenewal fee
24.07.1993Renewal fee patent year 03
15.07.1994Renewal fee patent year 04
21.07.1995Renewal fee patent year 05
24.07.1996Renewal fee patent year 06
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
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  TooltipES12.02.1997
FR12.02.1997
GB12.02.1997
IT12.02.1997
[2006/14]
Former [2002/25]ES12.02.1997
GB12.02.1997
IT12.02.1997
FR11.07.1997
Former [1999/42]GB12.02.1997
IT12.02.1997
FR11.07.1997
Former [1998/05]GB12.02.1997
FR11.07.1997
Former [1998/03]FR11.07.1997
Documents cited:Search[A]US3389332  (KETCHAM GEORGE M);
 [A]US3491287  (BROWN NEIL L);
 [A]US3510761  (BROWN NEIL L);
 [A]DE1598075  (BASF AG);
 [AD]DE2822943  (TESCH GMBH & CO KG)
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.