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Expired European patentEurope

Circuit for initialising fast-lock delay locked loop circuits without interference

EP 1039638 B1 · Applicant: Infineon Technologies AG

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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.

Why it's free to use

  • Filed March 1, 2000 and granted November 12, 2003. A European patent lasts at most 20 years from filing, so its term ended March 1, 2020.
  • 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 September 1, 2025.
  • 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.
FiledMarch 1, 2000
PublishedSeptember 27, 2000
GrantedNovember 12, 2003
Term endedMarch 1, 2020
Application numberEP 00104257
Classification (CPC)H03L7/107 +1 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedMarch 1, 2000PublishedSep 27, 2000Patent grantedNov 12, 2003Term endedMarch 1, 2020

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