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Expired Canadian patentCanada

Computer memory devices

CA 1200918 A · Owner: University Of Strathclyde · Inventors: Malone, Jon R.; Mcgregor, Douglas R.

CIPO record

Overview

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

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Abstract From the Canadian patent

A computer memory device for storing identified associations between data items of a data collection comprises an array of signal flow pathways which are respectively rendered representative of data items by an indexing component and input/output means connected to the array . Controllable interconnect means selectively inter-, connect the pathways in one or more pairs and effect directional control of signal flow between each interconnected pair in accordance with the identified association between the respectively represented data items of the data collection. The interconnect means are status controlled by signals delivered thereto over respective channels from, respective control …

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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

  • Granted February 18, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 18, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 15, 1983
GrantedFebruary 18, 1986
Term endedFebruary 18, 2003
Patent numberCA 1200918 A
Classification (IPC)G06F13/00

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedDec 15, 1983Patent grantedFeb 18, 1986Term endedFeb 18, 2003

Sources & verification

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