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Expired European patentEurope

Hollow electrical conductor coolable to extremely low temperatures, and a method of using it

EP 0563237 B1 · Applicant: Schmidt, Edwin

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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.

Why it's free to use

  • Filed December 18, 1991 and granted April 19, 1995. A European patent lasts at most 20 years from filing, so its term ended December 18, 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 June 18, 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.
FiledDecember 18, 1991
PublishedOctober 6, 1993
GrantedApril 19, 1995
Term endedDecember 18, 2011
Application numberEP 92902604
Classification (CPC)F25B27/00 +2 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedDec 18, 1991PublishedOct 6, 1993Patent grantedApril 19, 1995Term endedDec 18, 2011

Sources & verification