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Expired European patentEurope

Modification of the rate of heat or mass transfer in a stream of liquid metal

EP 0253479 B1 · Applicant: SOLMECS CORPORATION N.V.

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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 May 29, 1987 and granted October 16, 1991. A European patent lasts at most 20 years from filing, so its term ended May 29, 2007.
  • 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 November 29, 2012.
  • 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.
FiledMay 29, 1987
PublishedJanuary 20, 1988
GrantedOctober 16, 1991
Term endedMay 29, 2007
Application numberEP 87304754
Classification (CPC)G21B1/13

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedMay 29, 1987PublishedJan 20, 1988Patent grantedOct 16, 1991Term endedMay 29, 2007

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