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Expired Canadian patentCanada

Book cover serial stamp printer

CA 1284058 C · Owner: Boyle, Dennis J. · Inventors: Sampson, Craig F.; Sun, Rickson; Barsley, Paul N.

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

A peripheral or stand-alone computerized stamp printer is provided particularly for office use in which a print assembly including a pressure cam and leaf spring arrangement is associated with a heated print head which contacts and impresses a daisy wheel character against an imprinting tape in a confined cartridge to serially print computer-selected letters or characters on a binder, binder spine, or other workpiece. The printer assembly may move on an X or Y axis along a fixed or movable gantry upper arm. If the gantry is fixed means are, provided for moving paper stock binders or other workpieces, into proper position for clamping on a work surface on the top surface of the printer …

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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 May 14, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 14, 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.
FiledApril 23, 1987
GrantedMay 14, 1991
Term endedMay 14, 2008
Patent numberCA 1284058 C
Classification (IPC)B41J3/28 +1 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedApril 23, 1987Patent grantedMay 14, 1991Term endedMay 14, 2008

Sources & verification

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