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Expired European patentEurope

DC restore circuit in a video interface for medical imaging system

EP 0548534 B1 · Applicant: EASTMAN KODAK COMPANY

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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 November 16, 1992 and granted October 23, 1996. A European patent lasts at most 20 years from filing, so its term ended November 16, 2012.
  • 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 May 16, 2018.
  • 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.
FiledNovember 16, 1992
PublishedJune 30, 1993
GrantedOctober 23, 1996
Term endedNovember 16, 2012
Application numberEP 92119548
Classification (CPC)H04N5/16

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedNov 16, 1992PublishedJune 30, 1993Patent grantedOct 23, 1996Term endedNov 16, 2012

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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