Patent Yard Sign in
Expired Canadian patentCanada

Method for displaying graphics

CA 2219702 C · Owner: Nortel Networks Limited · Inventors: Gordon, Ian R.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A system and method for displaying text and graphics is provided. A subset of character codes from a character set are reserved to be associated with remotely redefinable pixel matrix definitions. After a connection to a remote server is made, pixel definitions are downloaded either interactively or in a script. Several of the pixel matrix definitions may be combined so as to display a graphic image.

Read the whole patent

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

  • Filed October 30, 1997 and granted December 9, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 30, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 30, 1997
GrantedDecember 9, 2003
Term endedOctober 30, 2017
Patent numberCA 2219702 C
Classification (IPC)G09G5/00 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedOct 30, 1997Patent grantedDec 9, 2003Term endedOct 30, 2017

Sources & verification

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