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Expired European patentEurope

Tris-(polyalkoxyalkylated) isocyanurate compounds and their use as functional fluids

EP 0010452 B1 · Applicant: OLIN CORPORATION

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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 24, 1979 and granted September 16, 1981. A European patent lasts at most 20 years from filing, so its term ended October 24, 1999.
  • 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 24, 2005.
  • 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 24, 1979
PublishedApril 30, 1980
GrantedSeptember 16, 1981
Term endedOctober 24, 1999
Application numberEP 79302321
Classification (CPC)C10M105/70 +1 more

Timeline

Timeline From EPO dates

1980198219841986198819901992199419961998Application filedOct 24, 1979PublishedApril 30, 1980Patent grantedSep 16, 1981Term endedOct 24, 1999

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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