Patent Yard Sign in
Expired Canadian patentCanada

User interface control for creating split panes in a single window

CA 2175148 C · Owner: Merks, Eduardus Antonious Theodorus · Inventors: Merks, Eduardus Antonious Theodorus; Spall, Roger P.; Cecco, Robert

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

An improved method is disclosed for creating and sizing panes within a window of a display screen of a computer system as part of an interactive graphical user interface. Grab handles are positioned in the borders of the panes. When a grab handle of a pane is selected by user interaction an adjustable rectangularform is created on the screen which represents a new pane. The existing pane is split in an arbitrary manner. The size of the new pane can be varied so as to include areas of the screen from other existing panes. The existing panes are then reconfigured so as to be accommodated of the screen along with the newly created pane.

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 April 26, 1996 and granted June 11, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 26, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 2018.
  • 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 26, 1996
GrantedJune 11, 2002
Term endedApril 26, 2016
Patent numberCA 2175148 C
Classification (IPC)G06F3/14 +1 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedApril 26, 1996Patent grantedJune 11, 2002Term endedApril 26, 2016

Sources & verification

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