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Expired European patentEurope

Asymmetric adaptive modulation in a wireless communication system

EP 1801989 B1 · Applicant: WI-LAN, 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 August 19, 2002 and granted November 22, 2017. A European patent lasts at most 20 years from filing, so its term ended August 19, 2022.
  • 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.
FiledAugust 19, 2002
PublishedJune 27, 2007
GrantedNovember 22, 2017
Term endedAugust 19, 2022
Application numberEP 07075257
Classification (CPC)H04L1/20

Timeline

Timeline From EPO dates

2003200520072009201120132015201720192021Application filedAug 19, 2002PublishedJune 27, 2007Patent grantedNov 22, 2017Term endedAug 19, 2022

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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