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Expired European patentEurope

Hybrid switched mode/linear power amplifier power supply for use in polar transmitter

EP 1671197 B1 · Applicant: Nokia Corporation

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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 September 16, 2004 and granted August 28, 2013. A European patent lasts at most 20 years from filing, so its term ended September 16, 2024.
  • 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.
FiledSeptember 16, 2004
PublishedJune 21, 2006
GrantedAugust 28, 2013
Term endedSeptember 16, 2024
Application numberEP 04769397
Classification (CPC)H03F3/68 +2 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedSep 16, 2004PublishedJune 21, 2006Patent grantedAug 28, 2013Term endedSep 16, 2024

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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