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Expired European patentEurope

Parallel register transfer mechanism for a reduction processor evaluating programs stored as binary directed graphs employing variable-free applicative language codes

EP 0164995 B1 · Applicant: UNISYS CORPORATION

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Overview

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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 June 4, 1985 and granted August 11, 1993. A European patent lasts at most 20 years from filing, so its term ended June 4, 2005.
  • 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 4, 2010.
  • 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 4, 1985
PublishedDecember 18, 1985
GrantedAugust 11, 1993
Term endedJune 4, 2005
Application numberEP 85303930
Classification (CPC)G06F9/30141 +2 more

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedJune 4, 1985PublishedDec 18, 1985Patent grantedAug 11, 1993Term endedJune 4, 2005

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