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Expired Canadian patentCanada

Printer input interface

CA 1249627 A · Owner: Delphax Systems, A Partnership · Inventors: Thomson, Christopher W.

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

Apparatus for combining data representative of two or more discrete images to a data representative of a single composite image and for presenting the composite image data to an ionographic print cartridge for the creation of a composite electrostatic image on the drum of a printer for subsequent toning and transfer to a receptor such as paper is described. Discrete image data is stored in Dynamic Random Access Memories (DRAMS) on interchangeable circuit cards. The printer carries a plurality of buttons identified with a particular data feature such as a font or parts of a form, and an operator can select using these buttons, different fonts and other parameters stored with the DRAMS for …

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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 31, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 31, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 17, 1985
GrantedJanuary 31, 1989
Term endedJanuary 31, 2006
Patent numberCA 1249627 A
Classification (IPC)G03G15/00 +2 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedJan 17, 1985Patent grantedJan 31, 1989Term endedJan 31, 2006

Sources & verification

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