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Extract from the Register of European Patents

EP About this file: EP0546378

EP0546378 - Illumination circuit for a LCD display in a motor vehicle [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  23.01.1998
Database last updated on 22.04.2025
Most recent event   Tooltip23.01.1998No opposition filed within time limitpublished on 11.03.1998 [1998/11]
Applicant(s)For all designated states
Blaupunkt-Werke GmbH
Postfach 77 77 77
31132 Hildesheim / DE
[N/P]
Former [1993/24]For all designated states
Blaupunkt-Werke GmbH
Postfach 77 77 77
D-31132 Hildesheim / DE
Inventor(s)01 / Altmann, Albrecht
Königsberger Strasse 2
W-3226 Sibbesse / DE
[1993/24]
Representative(s)(deleted)
[1994/51]
Former [1994/08]Eilers, Norbert, Dipl.-Phys.
Blaupunkt-Werke GmbH Patente und Lizenzen Postfach 77 77 77
D-31132 Hildesheim / DE
Former [1993/24]Eilers, Norbert, Dipl.-Phys.
Blaupunkt-Werke GmbH Patente und Lizenzen Postfach 77 77 77
D-31132 Hildesheim / DE
Application number, filing date92120055.625.11.1992
[1993/24]
Priority number, dateDE1991414105913.12.1991         Original published format: DE 4141059
[1993/24]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0546378
Date:16.06.1993
Language:DE
[1993/24]
Type: A3 Search report 
No.:EP0546378
Date:20.12.1995
Language:DE
[1995/51]
Type: B1 Patent specification 
No.:EP0546378
Date:19.03.1997
Language:DE
[1997/12]
Search report(s)(Supplementary) European search report - dispatched on:EP31.10.1995
ClassificationIPC:G09G3/34, H05B39/04
[1995/51]
CPC:
H05B39/047 (EP); Y02B20/00 (EP)
Former IPC [1993/24]G09G3/34
Designated contracting statesAT,   CH,   DE,   GB,   LI,   PT [1993/24]
TitleGerman:Schaltungsanordnung für die Beleuchtung einer LCD-Anzeigevorrichtung in einem Kraftfahrzeug[1993/24]
English:Illumination circuit for a LCD display in a motor vehicle[1993/24]
French:Circuit d'illumination d'un affichage à cristaux liquides dans un véhicule à moteur[1993/24]
Examination procedure20.06.1996Examination requested  [1996/33]
27.08.1996Despatch of communication of intention to grant (Approval: Yes)
09.09.1996Communication of intention to grant the patent
19.12.1996Fee for grant paid
19.12.1996Fee for publishing/printing paid
Opposition(s)20.12.1997No opposition filed within time limit [1998/11]
Fees paidRenewal fee
30.09.1994Renewal fee patent year 03
30.11.1995Renewal fee patent year 04
02.12.1996Renewal fee patent year 05
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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[A]DE3031093  (MERIT WERK MERTEN & CO KG [DE]) [A] 1 * page 8, line 8 - page 11, line 21; figures 1,2 *;
 [A]EP0163969  (TRW MESSMER [DE]) [A] 1 * abstract *;
 [A]DE3611724  (BBC BROWN BOVERI & CIE [DE]) [A] 1 * column 4, line 3 - column 4, line 60; figure 1 *;
 [A]DE3920847  (ALBRECHT PAUL [DE])
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.