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Expired European patentEurope

Method and plants for the continuous unilateral anodic oxidation of aluminium bands and utilization thereof to make offset printing plates

EP 0178297 B1 · Applicant: HOECHST AKTIENGESELLSCHAFT

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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 June 13, 1983 and granted October 19, 1988. A European patent lasts at most 20 years from filing, so its term ended June 13, 2003.
  • 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 13, 2008.
  • 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 13, 1983
PublishedApril 23, 1986
GrantedOctober 19, 1988
Term endedJune 13, 2003
Application numberEP 83901816
Classification (CPC)C25D11/005 +2 more

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedJune 13, 1983PublishedApril 23, 1986Patent grantedOct 19, 1988Term endedJune 13, 2003

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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