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Expired European patentEurope

Method for correcting optical wavefront aberrations, and optical system, for example a telescope, thus obtained

EP 1072922 B1 · Applicant: Leica Geosystems AG

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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 February 13, 1999 and granted July 23, 2003. A European patent lasts at most 20 years from filing, so its term ended February 13, 2019.
  • 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 August 13, 2024.
  • 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.
FiledFebruary 13, 1999
PublishedJanuary 31, 2001
GrantedJuly 23, 2003
Term endedFebruary 13, 2019
Application numberEP 99102937
Classification (CPC)G02B27/0025 +2 more

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedFeb 13, 1999PublishedJan 31, 2001Patent grantedJuly 23, 2003Term endedFeb 13, 2019

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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