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Expired European patentEurope

Electrodes for a high pressure discharge lamp, high pressure discharge lamps and methods of manufacturing therefor

EP 1148534 B1 · Applicant: Panasonic Corporation

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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 April 18, 2001 and granted May 14, 2014. A European patent lasts at most 20 years from filing, so its term ended April 18, 2021.
  • 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 October 18, 2026.
  • 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.
FiledApril 18, 2001
PublishedOctober 24, 2001
GrantedMay 14, 2014
Term endedApril 18, 2021
Application numberEP 01303518
Classification (CPC)H01J61/073

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedApril 18, 2001PublishedOct 24, 2001Patent grantedMay 14, 2014Term endedApril 18, 2021

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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