Electrophoretic display with single character erasure
CA 2116095 C · Owner: Krusos, Denis · Inventors: Krusos, Denis; Disanto, Frank J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A triode-type electrophoretic display (10) includes a pair of substantially identical glass faceplates (12 14) sealed, against a peripheral sealing wall (16) to form a fluid-tight envelope for containing an electrophoretic fluid. A first faceplate (12) bears the anode which is composed of a plurality of elongated substanitially parallel vertical conductor members (18) disposed within a first plane and a plurality of elongated substantially parallel vertical conductor member(20). The horizontal and vertical members are insulated from each other by interstitial insulator strips underlying the vertical members and by a SiO2 layer. The vertical and horizontal members are slotted and grouped …
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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 August 21, 1992 and granted July 14, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 21, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 21, 2014.
- 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.