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Expired European patentEurope

Handling homophones in a spoken query system

EP 1197951 B1 · Applicant: Pioneer Corporation

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Overview

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

Read the whole patent

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.

Why it's free to use

  • Filed October 15, 2001 and granted May 25, 2005. A European patent lasts at most 20 years from filing, so its term ended October 15, 2021.
  • 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.
FiledOctober 15, 2001
PublishedApril 17, 2002
GrantedMay 25, 2005
Term endedOctober 15, 2021
Application numberEP 01308743
Classification (CPC)H04M1/271 +1 more

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedOct 15, 2001PublishedApril 17, 2002Patent grantedMay 25, 2005Term endedOct 15, 2021

Sources & verification