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Expired Canadian patentCanada

Reducing pipeline delays in compilers by code hoisting

CA 2010067 C · Owner: Hoxey, Steven Murray · Inventors: Hoxey, Steven Murray

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

This invention permits an optimizing compiler to minimize the effect of pipeline delays which are, typically introduced by branching code. This invention employs code hoisting to introduce computations from lower regions of the flowgraph, into regions where pipeline delays are known to occur.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed February 14, 1990 and granted October 26, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 14, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 14, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 14, 1990
GrantedOctober 26, 1993
Term endedFebruary 14, 2010
Patent numberCA 2010067 C
Classification (IPC)G06F8/41

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedFeb 14, 1990Patent grantedOct 26, 1993Term endedFeb 14, 2010

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.