Display device comprising rotating display elements having a plurality of faces, and display panel composed of such
CA 2000095 A1 · Owner: Rousseau, Jacques · Inventors: Rousseau, Jacques; Rousseau, Jacques
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Display device comprising rotating display elements having a plurality of faces, and display panel composed of such devices, ABSTRACT, Display device comprising an array of rotating display elements (4) which have at least two faces of different colour and are arranged in rows and columns means (8, 18) for actuating the said rotating elements in terms of rotation, intended to ensure the modification of the face of each rotating element appearing on the display, and means for controlling the actuating means (8, 18) so as to ensure the rotation of the said rotating elements in order to form an image to be displayed characterized in that the rotating elements (4) of each row or column are …
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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 October 3, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 3, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 3, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.