Patent Yard Sign in
Expired European patentEurope

Use of polyoxyalkylene ethers of castor oil in the production of polyurethanes

EP 0130458 B1 · Applicant: Th. Goldschmidt AG

EPO PDF

Overview

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

Read the whole patent

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.

Google PatentsEPO PDF

Why it's free to use

  • Filed June 19, 1984 and granted August 24, 1988. A European patent lasts at most 20 years from filing, so its term ended June 19, 2004.
  • 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 19, 2009.
  • 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 19, 1984
PublishedJanuary 9, 1985
GrantedAugust 24, 1988
Term endedJune 19, 2004
Application numberEP 84106996
Classification (CPC)C08G65/26 +1 more

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedJune 19, 1984PublishedJan 9, 1985Patent grantedAug 24, 1988Term endedJune 19, 2004

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.