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Expired European patentEurope

Organosiloxane-containing polysaccharides

EP 0385396 B1 · Applicant: National Starch and Chemical Investment Holding Corporation

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 27, 1990 and granted September 7, 1994. A European patent lasts at most 20 years from filing, so its term ended February 27, 2010.
  • 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 27, 2015.
  • 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 27, 1990
PublishedSeptember 5, 1990
GrantedSeptember 7, 1994
Term endedFebruary 27, 2010
Application numberEP 90103801
Classification (CPC)C08B31/00 +2 more

Timeline

Timeline From EPO dates

1991199319951997199920012003200520072009Application filedFeb 27, 1990PublishedSep 5, 1990Patent grantedSep 7, 1994Term endedFeb 27, 2010

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.