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Expired European patentEurope

Cache memory controller associated with a microprocessor

EP 0337385 B1 · Applicant: NEC CORPORATION

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 April 11, 1989 and granted June 21, 1995. A European patent lasts at most 20 years from filing, so its term ended April 11, 2009.
  • 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 October 11, 2014.
  • 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.
FiledApril 11, 1989
PublishedOctober 18, 1989
GrantedJune 21, 1995
Term endedApril 11, 2009
Application numberEP 89106398
Classification (CPC)G06F12/0879

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedApril 11, 1989PublishedOct 18, 1989Patent grantedJune 21, 1995Term endedApril 11, 2009

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