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Expired European patentEurope

Method and apparatus for driving a discharge lamp

EP 0708579 B1 · Applicant: Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH

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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

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Why it's free to use

  • Filed October 16, 1995 and granted March 28, 2001. A European patent lasts at most 20 years from filing, so its term ended October 16, 2015.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by April 16, 2021.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledOctober 16, 1995
PublishedApril 24, 1996
GrantedMarch 28, 2001
Term endedOctober 16, 2015
Application numberEP 95116284
Classification (CPC)H05B41/2928

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedOct 16, 1995PublishedApril 24, 1996Patent grantedMarch 28, 2001Term endedOct 16, 2015

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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