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Expired European patentEurope

CDMA wireless transmitter-receiver system and transmission power control method of a CDMA wireless transmission apparatus

EP 1679804 B1 · Applicant: NTT DoCoMo, 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.

Why it's free to use

  • Filed September 11, 2001 and granted March 10, 2010. A European patent lasts at most 20 years from filing, so its term ended September 11, 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.
FiledSeptember 11, 2001
PublishedJuly 12, 2006
GrantedMarch 10, 2010
Term endedSeptember 11, 2021
Application numberEP 06075868
Classification (CPC)H04W52/24 +2 more

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedSep 11, 2001PublishedJuly 12, 2006Patent grantedMarch 10, 2010Term endedSep 11, 2021

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