Plasma display and method of making same
CA 2245176 A1 · Owner: David Sarnoff Research Center, Inc. · Inventors: Sreeram, Attiganal Narayanaswamy; Prabhu, Ashok Narayan; Matthies, Dennis Lee
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A plasma display device includes a front panel (54) having a glass body (38) secured to a surface of a substrate (32). The glass body has a plurality of channels (40) in its exposed surface with upstanding ribs (44) being between the channels. Conductive first electrodes (48) are on the body with each electrode extending along the bottom of a separate channel. The first electrodes are preferably embedded in the glass body. A transparent front panel is located over a back panel (31) and is seated on and secured to the glass body. A plurality of spaced, parallel second electrodes extend between the front panel and the back panel substantially orthogonally to the first electrodes. …
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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 January 30, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 30, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 30, 2019.
- 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.