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Expired European patentEurope

A method of adjusting the phase of a clock generator with respect to a data signal

EP 0452317 B1 · Applicant: NKT A/S

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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 June 23, 1989 and granted January 12, 1994. A European patent lasts at most 20 years from filing, so its term ended June 23, 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 December 23, 2014.
  • 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.
FiledJune 23, 1989
PublishedOctober 23, 1991
GrantedJanuary 12, 1994
Term endedJune 23, 2009
Application numberEP 89907690
Classification (CPC)H04L7/033

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedJune 23, 1989PublishedOct 23, 1991Patent grantedJan 12, 1994Term endedJune 23, 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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