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Expired European patentEurope

Method for detecting cobalamin and folic acid deficiency

EP 0486118 B1 · Applicant: COMPETITIVE TECHNOLOGIES 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.

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Why it's free to use

  • Filed November 17, 1987 and granted June 12, 1996. A European patent lasts at most 20 years from filing, so its term ended November 17, 2007.
  • 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 17, 2013.
  • 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 17, 1987
PublishedMay 20, 1992
GrantedJune 12, 1996
Term endedNovember 17, 2007
Application numberEP 91203329
Classification (CPC)G01N33/82 +2 more

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedNov 17, 1987PublishedMay 20, 1992Patent grantedJune 12, 1996Term endedNov 17, 2007

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

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