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Expired European patentEurope

Multiple layer positron emission tomography camera

EP 0205791 B1 · Applicant: Clayton Foundation for Research

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Overview

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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 April 10, 1986 and granted December 13, 1989. A European patent lasts at most 20 years from filing, so its term ended April 10, 2006.
  • 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 October 10, 2011.
  • 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.
FiledApril 10, 1986
PublishedDecember 30, 1986
GrantedDecember 13, 1989
Term endedApril 10, 2006
Application numberEP 86104928
Classification (CPC)G01T1/2985 +2 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedApril 10, 1986PublishedDec 30, 1986Patent grantedDec 13, 1989Term endedApril 10, 2006

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.