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Expired European patentEurope

Carbonylation process for the production of aromatic acids

EP 0236348 B1 · Applicant: EASTMAN KODAK COMPANY (a New Jersey corporation)

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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 July 23, 1986 and granted May 2, 1990. A European patent lasts at most 20 years from filing, so its term ended July 23, 2006.
  • 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 January 23, 2012.
  • 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.
FiledJuly 23, 1986
PublishedSeptember 16, 1987
GrantedMay 2, 1990
Term endedJuly 23, 2006
Application numberEP 86904704
Classification (CPC)C07C51/10

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedJuly 23, 1986PublishedSep 16, 1987Patent grantedMay 2, 1990Term endedJuly 23, 2006

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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