blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability

2022.02.11

More...
blank News flashes

News Flashes

New version of the European Patent Register – SPC proceedings information in the Unitary Patent Register.

2024-07-24

More...
blank Related links

Extract from the Register of European Patents

EP About this file: EP0664663

EP0664663 - Variable arc current electronic ballast for fluorescent lamps [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  08.09.2000
Database last updated on 13.09.2024
Most recent event   Tooltip04.01.2008Lapse of the patent in a contracting state
New state(s): IT
published on 06.02.2008  [2008/06]
Applicant(s)For all designated states
DON WIDMAYER & ASSOCIATES, INC.
4709 Locust Hill Court Bethesda
Maryland 20814 / US
[N/P]
Former [1995/30]For all designated states
DON WIDMAYER & ASSOCIATES, INC.
4709 Locust Hill Court
Bethesda, Maryland 20814 / US
Inventor(s)01 / Widmayer, Don Frederick
4709 Locust Hill Court
Bethesda, Maryland 20814 / US
02 / Chiu, Alex Weitzu
2895 Glenora Lane
Rockville, Maryland 20850 / US
[1995/30]
Representative(s)Fréchède, Michel, et al
Cabinet Plasseraud
52 Rue de la Victoire
75440 Paris Cedex 09 / FR
[N/P]
Former [1995/30]Fréchède, Michel, et al
Cabinet Plasseraud 84, rue d'Amsterdam
F-75440 Paris Cédex 09 / FR
Application number, filing date95400077.416.01.1995
[1995/30]
Priority number, dateUS1994018336819.01.1994         Original published format: US 183368
[1995/30]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0664663
Date:26.07.1995
Language:EN
[1995/30]
Type: B1 Patent specification 
No.:EP0664663
Date:10.11.1999
Language:EN
[1999/45]
Search report(s)(Supplementary) European search report - dispatched on:EP07.04.1995
ClassificationIPC:H05B41/392
[1995/30]
CPC:
H05B41/3922 (EP,US); Y10S315/07 (EP)
Designated contracting statesDE,   ES,   FR,   GB,   IT [1995/30]
TitleGerman:Elektronisches Vorschaltgerät zum Verändern des Lampenstroms von Leuchtstofflampen[1995/30]
English:Variable arc current electronic ballast for fluorescent lamps[1995/30]
French:Ballast électronique avec courant d'arc variable pour des lampes fluorescentes[1995/30]
Examination procedure22.07.1995Examination requested  [1995/38]
16.04.1998Despatch of a communication from the examining division (Time limit: M06)
11.08.1998Reply to a communication from the examining division
01.12.1998Despatch of a communication from the examining division (Time limit: M02)
26.01.1999Reply to a communication from the examining division
17.03.1999Despatch of communication of intention to grant (Approval: No)
06.05.1999Despatch of communication of intention to grant (Approval: later approval)
12.05.1999Communication of intention to grant the patent
09.08.1999Fee for grant paid
09.08.1999Fee for publishing/printing paid
Opposition(s)11.08.2000No opposition filed within time limit [2000/43]
Fees paidRenewal fee
10.12.1996Renewal fee patent year 03
12.01.1998Renewal fee patent year 04
29.01.1999Renewal fee patent year 05
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  TooltipES10.11.1999
FR10.11.1999
IT10.11.1999
DE11.02.2000
[2008/06]
Former [2006/14]ES10.11.1999
FR10.11.1999
DE11.02.2000
Former [2002/26]ES10.11.1999
DE11.02.2000
FR07.04.2000
Former [2002/09]DE11.02.2000
FR07.04.2000
Former [2001/09]FR07.04.2000
Documents cited:Search[Y]DE3624106  (ULLMANN ULO WERK [DE]) [Y] 1,2;
 [YA]WO9301694  (BOSCH GMBH ROBERT [DE]) [Y] 1,2 [A] 3-5;
 [XY]DE4015455  (ZUMTOBEL AG [AT]) [X] 3-6 [Y] 7-10;
 [YA]WO9011005  (HAREL JEAN CLAUDE [FR]) [Y] 7-9 [A] 3-6;
 [Y]EP0445757  (TDK CORP [JP]) [Y] 10;
 [A]US5027034  (RUBY JOSEPH H [US], et al) [A] 1,3-6,8,10;
 [A]DE3623306  (MATSUSHITA ELECTRIC WORKS LTD [JP]) [A] 3
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.