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Expired Canadian patentCanada

Printing apparatus and printing method therefor

CA 2313856 C · Owner: Toda, Koji · Inventors: Muroi, Kunimasa; Toda, Koji

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

In a printing apparatus for forming a desired image by coagulating a portion of liquid, ink in a predetermined space S formed between a circumferential surface of a rotation drum, and a plurality of negative electrodes by electrical energizing and , transferring this to a, printing object such as paper to thereby affect printing, there is provided on a rotation input, side of the plurality of negative electrodes a discharge port whereby a fluid can be discharged, towards the negative electrode surface and the surroundings thereof. Moreover there is, provided a fluid supply device for supplying a fluid (which may be a liquid or a gas) to the, discharge port.

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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 July 11, 2000 and granted August 12, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 11, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 11, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 11, 2000
GrantedAugust 12, 2003
Term endedJuly 11, 2020
Patent numberCA 2313856 C
Classification (IPC)B41M5/20 +1 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedJuly 11, 2000Patent grantedAug 12, 2003Term endedJuly 11, 2020

Sources & verification

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