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Expired European patentEurope

Compact optical system and packaging for head mounted display

EP 1176449 B1 · Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

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Overview

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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 15, 2001 and granted April 19, 2006. A European patent lasts at most 20 years from filing, so its term ended February 15, 2021.
  • 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 15, 2026.
  • 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 15, 2001
PublishedJanuary 30, 2002
GrantedApril 19, 2006
Term endedFebruary 15, 2021
Application numberEP 01480012
Classification (CPC)G02B27/01 +2 more

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedFeb 15, 2001PublishedJan 30, 2002Patent grantedApril 19, 2006Term endedFeb 15, 2021

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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