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Expired Canadian patentCanada

Display system

CA 2469165 C · Owner: Westland Helicopters Limited · Inventors: Stickels, Keith David

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 display system for displaying a layout of controls including at least one of an information display a switch such as a toggle or push-button switch and a monitoring device such as an indicator or a gauge, for a vehicle, the display system including a touch sensitive screen which is generally transparent over a significant portion of its area and a plurality of projectors which project onto a back of the screen images of the vehicle controls, the projectors each being operatively connected to a computer controller which responds to the front of the screen being touched where a depicted control is displayed to change the display in a manner to mimic the result of a corresponding actual …

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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

  • Filed May 28, 2004 and granted July 30, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 28, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 28, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 28, 2004
GrantedJuly 30, 2013
Term endedMay 28, 2024
Patent numberCA 2469165 C
Classification (IPC)B64D43/00 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedMay 28, 2004Patent grantedJuly 30, 2013Term endedMay 28, 2024

Sources & verification

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