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Expired European patentEurope

Method and apparatus for automatic phase adjustment in a phase locked loop

EP 0378982 B1 · Applicant: TELEFONAKTIEBOLAGET L M ERICSSON

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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 December 18, 1989 and granted June 1, 1994. A European patent lasts at most 20 years from filing, so its term ended December 18, 2009.
  • 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 June 18, 2015.
  • 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.
FiledDecember 18, 1989
PublishedJuly 25, 1990
GrantedJune 1, 1994
Term endedDecember 18, 2009
Application numberEP 89850438
Classification (CPC)H03L7/091

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedDec 18, 1989PublishedJuly 25, 1990Patent grantedJune 1, 1994Term endedDec 18, 2009

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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