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Expired European patentEurope

Method and apparatus for sequencing addresses of a fast fourier transform array

EP 0074401 B1 · Applicant: ADVANCED MICRO DEVICES, INC.

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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 March 19, 1982 and granted October 5, 1988. A European patent lasts at most 20 years from filing, so its term ended March 19, 2002.
  • 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 September 19, 2007.
  • 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.
FiledMarch 19, 1982
PublishedMarch 23, 1983
GrantedOctober 5, 1988
Term endedMarch 19, 2002
Application numberEP 82901268
Classification (CPC)G06F17/142

Timeline

Timeline From EPO dates

1983198519871989199119931995199719992001Application filedMarch 19, 1982PublishedMarch 23, 1983Patent grantedOct 5, 1988Term endedMarch 19, 2002

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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