Image display apparatus
CA 2135458 C · Owner: Canon Kabushiki Kaisha · Inventors: Hasegawa, Mitsutoshi; Suzuki, Hidetoshi; Takamatsu, Osamu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An image display apparatus comprises a plurality of electron-emitting devices and an image-forming member for forming an image upon irradiation of electron beams emitted from the electron-emitting devices. The apparatus further comprises a plurality of substrates having the electron-emitting devices arrayed thereon and being arranged side by side and a, deviating unit for deviating the electron beams emitted from the electron-emitting devices arrayed on the substrates. The deviating unit deviates the electron beams toward the boundary between the substrates. When the plurality of substrates are combined with each other to provide the image forming apparatus having a large-sized screen, a …
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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 November 9, 1994 and granted May 9, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 9, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 9, 2016.
- 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
Timeline From CIPO dates
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.