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Expired Canadian patentCanada

Data processing system with means to convert burst operations into pipelined operations

CA 2018065 C · Owner: International Business Machines Corporation · Inventors: Begun, Ralph 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

A data processing system includes a microprocessor operable in a burst mode to read data from a memory. The memory, its controller and bus are operable in a pipelining mode. Array logic is connected between the microprocessor and the remaining elements for converting the burst mode to the pipeline mode.

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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 June 1, 1990 and granted January 2, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 1, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 1, 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.
FiledJune 1, 1990
GrantedJanuary 2, 1996
Term endedJune 1, 2010
Patent numberCA 2018065 C
Classification (IPC)G06F13/16 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJune 1, 1990Patent grantedJan 2, 1996Term endedJune 1, 2010

Sources & verification

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