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Expired Canadian patentCanada

Image printer

CA 2124381 C · Owner: Tanibata, Toru · Inventors: Tanibata, Toru

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

An image printer includes a projection exposure unit for projecting and exposing a film image on to a photosensitive material, an image exposure unit for exposing the photosensitive material based on exposure image information with setting an exposure amount for each of a plurality of areas, an image reader for reading information of the film image with the information being divided into a number of areas and, a correction-information instructing unit for instructing correction information for correcting the image information read by the image reader. The image exposure unit generates the exposure image information based on the image information read by the image reader means and on 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 May 26, 1994 and granted July 27, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 26, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 26, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 26, 1994
GrantedJuly 27, 1999
Term endedMay 26, 2014
Patent numberCA 2124381 C
Classification (IPC)G03B27/80 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedMay 26, 1994Patent grantedJuly 27, 1999Term endedMay 26, 2014

Sources & verification

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