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Expired Canadian patentCanada

Image processing system including a processor side memory and a display side memory

CA 2107436 C · Owner: Tateyama, Seiji · Inventors: Takahashi, Mitsuhiro; Tateyama, Seiji; Tomita, Masahide

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

Image data are transmitted for each unit of predetermined rasters. A start timing of transmission is controlled by a control unit to provide a suitable vertical position on a screen.

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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 September 30, 1993 and granted November 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 30, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 30, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 30, 1993
GrantedNovember 12, 2002
Term endedSeptember 30, 2013
Patent numberCA 2107436 C
Classification (IPC)G06T1/20

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedSep 30, 1993Patent grantedNov 12, 2002Term endedSep 30, 2013

Sources & verification

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