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Expired Canadian patentCanada

Method and apparatus for temperature control in thermal printers

CA 1264982 C · Owner: Intermec Corporation · Inventors: Samuel, Robert A.

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

Abstract of the Invention A thermal printing apparatus for printing on a thermal print medium (10) having a conversion temperature (TC) to which the thermal print medium must be raised to cause printing to occur. The apparatus comprises a thermal print element (40) and exposure means for providing energy to the print element at a first average rate for a time sufficient to raise the temperature of the print element from below the conversion temperature to a temperature above the conversion temperature, and for then providing energy to the print element at a second average rate, the second average rate being less than the first average rate but sufficient to maintain the temperature of 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

  • Granted January 30, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 30, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 12, 1986
GrantedJanuary 30, 1990
Term endedJanuary 30, 2007
Patent numberCA 1264982 C
Classification (IPC)B41J2/36 +1 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedDec 12, 1986Patent grantedJan 30, 1990Term endedJan 30, 2007

Sources & verification

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