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Expired Canadian patentCanada

Personal computer with local bus arbitration

CA 2064162 C · Owner: Raymond, Jonathan Henry · Inventors: Fuoco, Daniel Paul; Mathisen, Eric; Tashakori, Esmaeil

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 relates to personal computers and more, particularly to personal computers in which performance is enhanced by enabling arbitration for control over a local processor bus among a plurality of "master" devices coupled directly to the local processor bus. A personal computer system in accordance with this invention has a high speed local processor data bus; an input/output data bus; at least two master devices coupled directly to the local processor bus; and a bus interface controller coupled directly to the local processor bus and directly to the input/output data bus for providing communications between the local processor bus and input/output data bus with the, bus interface …

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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 March 26, 1992 and granted July 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 26, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 26, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 26, 1992
GrantedJuly 9, 2002
Term endedMarch 26, 2012
Patent numberCA 2064162 C
Classification (IPC)G06F13/36 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedMarch 26, 1992Patent grantedJuly 9, 2002Term endedMarch 26, 2012

Sources & verification

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