Expired European patentEurope
Method for manufacturing superconducting device having a reduced thickness of oxide superconducting layer and superconducting device manufactured thereby
EP 0478465 B1 · Applicant: Sumitomo Electric Industries, Ltd.
Overview
The published document from the EPO: abstract, claims, description and drawings. Open it full size
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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 September 27, 1991 and granted December 6, 1995. A European patent lasts at most 20 years from filing, so its term ended September 27, 2011.
- 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 March 27, 2017.
- 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.
FiledSeptember 27, 1991
PublishedApril 1, 1992
GrantedDecember 6, 1995
Term endedSeptember 27, 2011
Application numberEP 91402595
Classification (CPC)H10N60/207
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.