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Expired European patentEurope

Pigment preparations based on monoazo pigments

EP 0712908 B1 · Applicant: HOECHST 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 October 31, 1995 and granted June 21, 2000. A European patent lasts at most 20 years from filing, so its term ended October 31, 2015.
  • 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 May 1, 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.
FiledOctober 31, 1995
PublishedMay 22, 1996
GrantedJune 21, 2000
Term endedOctober 31, 2015
Application numberEP 95117131
Classification (CPC)C09B67/0041 +1 more

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedOct 31, 1995PublishedMay 22, 1996Patent grantedJune 21, 2000Term endedOct 31, 2015

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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