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Expired Canadian patentCanada

Method and apparatus for high resolution ink jet printing

CA 1286911 C · Owner: Samuelsson, Bo A. · Inventors: Samuelsson, Bo A.; Hertz, Carl Hellmuth

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

An ink jet printing method is disclosed wherein a record is, produced by applying varying amounts of ink on a plurality of pixel locations of a record medium, said method comprising the steps: a) generating an ink jet directed towards said record medium said, ink jet breaking up into a series of drops with a predetermined drop formation rate, b) applying an electric charge of predetermined magnitude to selected drops, c) deflecting each charged drop as a function of its charge to determine whether the drop travels along a recording path to reach said recording medium or is intercepted d) producing relative transverse movement between said drop path and said recording medium, e) generating a …

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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 July 30, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 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.
FiledFebruary 26, 1988
GrantedJuly 30, 1991
Term endedJuly 30, 2008
Patent numberCA 1286911 C
Classification (IPC)B41J2/08 +2 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedFeb 26, 1988Patent grantedJuly 30, 1991Term endedJuly 30, 2008

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