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Expired European patentEurope

Laser irradiation method, laser irradiation apparatus and method for manufacturing crystalline semiconductor film

EP 1596241 B1 · Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

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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 21, 2005 and granted October 21, 2009. A European patent lasts at most 20 years from filing, so its term ended April 21, 2025.
  • 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.
FiledApril 21, 2005
PublishedNovember 16, 2005
GrantedOctober 21, 2009
Term endedApril 21, 2025
Application numberEP 05008796
Classification (CPC)B23K15/10 +2 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedApril 21, 2005PublishedNov 16, 2005Patent grantedOct 21, 2009Term endedApril 21, 2025

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

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