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Expired European patentEurope

Method for extracting organic substance, solvent for use in said method, and method for measuring content of organic substance

EP 0669151 B1 · Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

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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 February 22, 1995 and granted March 26, 2003. A European patent lasts at most 20 years from filing, so its term ended February 22, 2015.
  • 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 August 22, 2020.
  • 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.
FiledFebruary 22, 1995
PublishedAugust 30, 1995
GrantedMarch 26, 2003
Term endedFebruary 22, 2015
Application numberEP 95102490
Classification (CPC)B01D11/0288 +1 more

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedFeb 22, 1995PublishedAug 30, 1995Patent grantedMarch 26, 2003Term endedFeb 22, 2015

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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