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Expired European patentEurope

Method for preparing a water-absorbent starch product

EP 0005000 B1 · Applicant: A.E. STALEY MANUFACTURING COMPANY

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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 January 15, 1979 and granted October 21, 1981. A European patent lasts at most 20 years from filing, so its term ended January 15, 1999.
  • 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 July 15, 2004.
  • 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.
FiledJanuary 15, 1979
PublishedOctober 31, 1979
GrantedOctober 21, 1981
Term endedJanuary 15, 1999
Application numberEP 79300060
Classification (CPC)C08F251/00 +1 more

Timeline

Timeline From EPO dates

1980198219841986198819901992199419961998Application filedJan 15, 1979PublishedOct 31, 1979Patent grantedOct 21, 1981Term endedJan 15, 1999

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.