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Expired European patentEurope

Objective measurement and correction of optical systems using wavefront analysis

EP 1032809 B1 · Applicant: Alcon, Inc.

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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 November 21, 1997 and granted January 10, 2007. A European patent lasts at most 20 years from filing, so its term ended November 21, 2017.
  • 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 May 21, 2023.
  • 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.
FiledNovember 21, 1997
PublishedSeptember 6, 2000
GrantedJanuary 10, 2007
Term endedNovember 21, 2017
Application numberEP 97948547
Classification (CPC)A61B3/1015 +1 more

Timeline

Timeline From EPO dates

1998200020022004200620082010201220142016Application filedNov 21, 1997PublishedSep 6, 2000Patent grantedJan 10, 2007Term endedNov 21, 2017

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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