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Expired Canadian patentCanada

Instruction execution control system

CA 2018756 C · Owner: Inoue, Kazuhisa · Inventors: Inoue, Kazuhisa

CIPO record

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Abstract From the Canadian patent

An instruction execution control system of an information processing device having a pipeline instruction execution control portion is described. The system sequentially executes an instruction interval between completion of excution of a particular instruction and reading of the next instruction. In the system a program status word is held. The program status word includes indicating information concerning whether or not an instruction interval is to be sequentially executed and control information indicating the execution status of the program. An instruction execution sequencing indicator responsive to the indicating information of the program status word held indicates to the …

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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 12, 1990 and granted April 19, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 12, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 12, 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 12, 1990
GrantedApril 19, 1994
Term endedJune 12, 2010
Patent numberCA 2018756 C
Classification (IPC)G06F9/30 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJune 12, 1990Patent grantedApril 19, 1994Term endedJune 12, 2010

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