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Expired European patentEurope

Method of crosslinking rubber and plastic moldings

EP 0194375 B1 · Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED

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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 October 10, 1985 and granted April 17, 1991. A European patent lasts at most 20 years from filing, so its term ended October 10, 2005.
  • 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 April 10, 2011.
  • 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.
FiledOctober 10, 1985
PublishedSeptember 17, 1986
GrantedApril 17, 1991
Term endedOctober 10, 2005
Application numberEP 85307271
Classification (CPC)B29C59/16

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedOct 10, 1985PublishedSep 17, 1986Patent grantedApril 17, 1991Term endedOct 10, 2005

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.