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European application, never grantedEurope

Composition and process for preventing blistering during heat treating of aluminum alloys

EP 0882809 A2 · Applicant: HENKEL CORPORATION

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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 May 19, 1998 and never granted as a European patent. Had it been granted, its 20-year term would have ended May 19, 2018.
  • 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 19, 2023.
  • 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 19, 1998
PublishedDecember 9, 1998
GrantedNever granted
Term endedMay 19, 2018
Application numberEP 98201657
Classification (CPC)C22F1/04 +1 more

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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

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