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Expired European patentEurope

Process and devices for controlling processes for heat treatment of metals in function of the material

EP 0484359 B1 · Applicant: Gattermeier, Helmut, Dipl.-Ing.

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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.

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Why it's free to use

  • Filed July 26, 1990 and granted October 12, 1994. A European patent lasts at most 20 years from filing, so its term ended July 26, 2010.
  • 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 January 26, 2016.
  • 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.
FiledJuly 26, 1990
PublishedMay 13, 1992
GrantedOctober 12, 1994
Term endedJuly 26, 2010
Application numberEP 90910724
Classification (CPC)C21D11/00

Timeline

Timeline From EPO dates

1991199319951997199920012003200520072009Application filedJuly 26, 1990PublishedMay 13, 1992Patent grantedOct 12, 1994Term endedJuly 26, 2010

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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