Expired European patentEurope
Linear anodic structure
EP 0084875 B1 · Applicant: ORONZIO DE NORA S.A.
Overview
The published document from the EPO: abstract, claims, description and drawings. Open it full size
Read the whole patent
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.
Why it's free to use
- Filed January 21, 1983 and granted November 5, 1986. A European patent lasts at most 20 years from filing, so its term ended January 21, 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 July 21, 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.
FiledJanuary 21, 1983
PublishedAugust 3, 1983
GrantedNovember 5, 1986
Term endedJanuary 21, 2003
Application numberEP 83100544
Classification (CPC)C23F13/02
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.