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Expired European patentEurope

Elastic polyurethane fibers and process for the production thereof

EP 0872581 B1 · Applicant: Asahi Kasei 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 June 21, 1996 and granted March 19, 2003. A European patent lasts at most 20 years from filing, so its term ended June 21, 2016.
  • 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 December 21, 2021.
  • 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.
FiledJune 21, 1996
PublishedOctober 21, 1998
GrantedMarch 19, 2003
Term endedJune 21, 2016
Application numberEP 96918878
Classification (CPC)C08G18/10 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedJune 21, 1996PublishedOct 21, 1998Patent grantedMarch 19, 2003Term endedJune 21, 2016

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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