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Expired European patentEurope

Discharge excitation type short pulse laser device

EP 0543795 B1 · Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA

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Overview

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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 2, 1985 and granted August 21, 1996. A European patent lasts at most 20 years from filing, so its term ended October 2, 2005.
  • 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 2, 2011.
  • 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 2, 1985
PublishedMay 26, 1993
GrantedAugust 21, 1996
Term endedOctober 2, 2005
Application numberEP 93100550
Classification (CPC)H01S3/036 +2 more

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedOct 2, 1985PublishedMay 26, 1993Patent grantedAug 21, 1996Term endedOct 2, 2005

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.