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Expired European patentEurope

Process for the preparation of polyether polyols using crystalline multi-metal cyanide catalysts

EP 1185367 B1 · Applicant: BASF AKTIENGESELLSCHAFT

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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 May 19, 2000 and granted June 29, 2005. A European patent lasts at most 20 years from filing, so its term ended May 19, 2020.
  • 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 November 19, 2025.
  • 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.
FiledMay 19, 2000
PublishedMarch 13, 2002
GrantedJune 29, 2005
Term endedMay 19, 2020
Application numberEP 00935078
Classification (CPC)C08G65/2663 +1 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedMay 19, 2000PublishedMarch 13, 2002Patent grantedJune 29, 2005Term endedMay 19, 2020

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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