Expired European patentEurope
Porous metallic body with large specific surface area, process for producing the same, porous metallic platy material, and electrode of alkaline secondary battery
EP 0764489 B1 · Applicant: MITSUBISHI MATERIALS CORPORATION
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.
Why it's free to use
- Filed April 2, 1996 and granted February 13, 2002. A European patent lasts at most 20 years from filing, so its term ended April 2, 2016.
- 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 October 2, 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.
FiledApril 2, 1996
PublishedMarch 26, 1997
GrantedFebruary 13, 2002
Term endedApril 2, 2016
Application numberEP 96907766
Classification (CPC)B22F3/22 +2 more
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.