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Expired European patentEurope

Nonimaging optical illumination system

EP 0699286 B1 · Applicant: 3M Innovative Properties Company

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 28, 1994 and granted July 24, 2002. A European patent lasts at most 20 years from filing, so its term ended April 28, 2014.
  • 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 October 28, 2019.
  • 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 28, 1994
PublishedMarch 6, 1996
GrantedJuly 24, 2002
Term endedApril 28, 2014
Application numberEP 94915932
Classification (CPC)G02B27/0927 +2 more

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedApril 28, 1994PublishedMarch 6, 1996Patent grantedJuly 24, 2002Term endedApril 28, 2014

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.