Field emitter flat display containing a getter and process for obtaining it
CA 2174962 C · Owner: Carella, Sergio · Inventors: Carella, Sergio; Boffito, Claudio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Field emitter flat display, having an inner vacuum space wherein there are housed: a) a layer of excitable phosphors and a plurality of microcathodes (MT) which, emit electrons driven by a high electric field; and b) a plurality of electric feedthroughs (P) and a vacuum stabilizer (G). Said vacuum stabilizer (g) is essentially formed of a porous supported layer of a non-evaporable getter material 20 to 180 µm thick, housed in a zone essentially free from microcathodes, phosphors and feedthroughs.
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 February 27, 1995 and granted December 30, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 27, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2017.
- 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.