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Expired Canadian patentCanada

Marking apparatus with matrix defining locus of movement

CA 1296946 C · Owner: Telesis Technologies, Inc. · Inventors: Cyphert, David Lee; Robertson, John A.

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

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Abstract From the Canadian patent

MARKING APPARATUS WITH MATRIX ?, LOCUS OF MOVEMENT ABSTRACT OF THE DISCLOSURE, Apparatus for forming multi-character messages on the surface of solid materials which employs an array of marker pins moved by a carriage in a manner defining an undulating locus of movement. This locus traces the matrix with which character fonts are defined by pixels formed by the marker pins as discrete indentations. The carriage and head containing the marker pins are pivotally driven by a cam to provide vertical movement and by a Geneva mechanism to provide horizontal movement. Pixel positions for the matrices are established by a timing disk and control over the pins is provided employing an interrupt …

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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 March 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 20, 1988
GrantedMarch 10, 1992
Term endedMarch 10, 2009
Patent numberCA 1296946 C
Classification (IPC)B41J2/23 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedJune 20, 1988Patent grantedMarch 10, 1992Term endedMarch 10, 2009

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