Patent Yard Sign in
Expired Canadian patentCanada

Hardware generation of styled vectors in a graphics system

CA 1236229 A · Owner: International Business Machines Corporation · Inventors: Brown, Mark W.; Dubke, Robert E.; Kimmel, Milton J.

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

Abstract of the Disclosure, Vectors on a graphics display are styled according to a specifiable pattern of on/off segments at the same time that they are drawn on the display by integrating the styling of each pixel on the vector at the same time the location of that same pixel is determined according to Bresenham's algorithm.

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

  • Granted May 3, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 3, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 28, 1985
GrantedMay 3, 1988
Term endedMay 3, 2005
Patent numberCA 1236229 A
Classification (IPC)G09G1/00 +2 more

Timeline

Timeline From CIPO dates

1986198819901992199419961998200020022004Application filedMarch 28, 1985Patent grantedMay 3, 1988Term endedMay 3, 2005

Sources & verification

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