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Expired Canadian patentCanada

Data processor

CA 1283738 C · Owner: Kikuchi, Atsushi · Inventors: Ito, Norikazu; Hasebe, Atsushi; Kato, Ryohei

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

Disclosed is herein an information processing system including an input/output section a memory, section, and a data processing section for communicating data via the memory section in block units between the input/output section and the data processing section to effect a processing characterized in that a signal indicating an end of the processing in block units is supplied from the data processing section to the input/output section and that a processing start timing signal formed depending on the signal indicating the processing end delivered from the output section is delivered to the data processing section the processing, start timing signal being synchronized with a data block …

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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 April 30, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 30, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 12, 1986
GrantedApril 30, 1991
Term endedApril 30, 2008
Patent numberCA 1283738 C
Classification (IPC)G06F15/16 +1 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedNov 12, 1986Patent grantedApril 30, 1991Term endedApril 30, 2008

Sources & verification

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