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Expired European patentEurope

Poly(arylene sulfide) sheet and production process thereof

EP 0372829 B1 · Applicant: KUREHA KAGAKU KOGYO KABUSHIKI KAISHA

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Overview

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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 30, 1989 and granted August 31, 1994. A European patent lasts at most 20 years from filing, so its term ended November 30, 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 May 30, 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.
FiledNovember 30, 1989
PublishedJune 13, 1990
GrantedAugust 31, 1994
Term endedNovember 30, 2009
Application numberEP 89312476
Classification (CPC)B29C48/022 +2 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedNov 30, 1989PublishedJune 13, 1990Patent grantedAug 31, 1994Term endedNov 30, 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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.