Expired European patentEurope
Method of manufacturing superconducting thin film formed of oxide superconductor having non superconducting region in it, and method of manufacturing superconducting device utilizing the superconducting thin film
EP 0534811 B1 · Applicant: Sumitomo Electric Industries, Ltd.
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 August 27, 1992 and granted May 8, 1996. A European patent lasts at most 20 years from filing, so its term ended August 27, 2012.
- 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 February 27, 2018.
- 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.
FiledAugust 27, 1992
PublishedMarch 31, 1993
GrantedMay 8, 1996
Term endedAugust 27, 2012
Application numberEP 92402354
Classification (CPC)H10N60/0661 +1 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.