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Expired European patentEurope

Method of manufacturing a copper-based memory alloy

EP 0045985 B1 · Applicant: BBC Aktiengesellschaft Brown, Boveri & Cie.

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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 June 19, 1981 and granted February 8, 1984. A European patent lasts at most 20 years from filing, so its term ended June 19, 2001.
  • 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 December 19, 2006.
  • 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.
FiledJune 19, 1981
PublishedFebruary 17, 1982
GrantedFebruary 8, 1984
Term endedJune 19, 2001
Application numberEP 81200691
Classification (CPC)C22F1/006 +2 more

Timeline

Timeline From EPO dates

1982198419861988199019921994199619982000Application filedJune 19, 1981PublishedFeb 17, 1982Patent grantedFeb 8, 1984Term endedJune 19, 2001

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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