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Expired European patentEurope

Improved composition for isolating and purifying nucleic acid and improved method using same

EP 0473575 B1 · Applicant: GENETICS INSTITUTE, 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 May 22, 1989 and granted April 13, 1994. A European patent lasts at most 20 years from filing, so its term ended May 22, 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 November 22, 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.
FiledMay 22, 1989
PublishedMarch 11, 1992
GrantedApril 13, 1994
Term endedMay 22, 2009
Application numberEP 89906232
Classification (CPC)C12N15/1003

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedMay 22, 1989PublishedMarch 11, 1992Patent grantedApril 13, 1994Term endedMay 22, 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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