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Expired European patentEurope

Intracavity resonantly enhanced fourth-harmonic generation using uncoated brewster surfaces

EP 1493213 B1 · Applicant: Lightwave Electronics 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 March 5, 2003 and granted January 9, 2008. A European patent lasts at most 20 years from filing, so its term ended March 5, 2023.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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.
FiledMarch 5, 2003
PublishedJanuary 5, 2005
GrantedJanuary 9, 2008
Term endedMarch 5, 2023
Application numberEP 03723689
Classification (CPC)H01S3/109

Timeline

Timeline From EPO dates

2004200620082010201220142016201820202022Application filedMarch 5, 2003PublishedJan 5, 2005Patent grantedJan 9, 2008Term endedMarch 5, 2023

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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