Flat panel imaging system
CA 2208762 C · Owner: Westaim El Canada Inc. · Inventors: Huang, Zhong Shou; Wright, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel thin film transistor (TFT) structure for minimizing parasitic capacitances on both the drain and source electrodes. According to a first embodiment, a triple gate TFT is provided with an open gate structure in which the source and drain electrodes are non overlapping with the top gate electrode. A pair of bottom gate electrodes being aligned respectively with the first gap between the gate and source and the second gap between the gate and drain. According to a second embodiment of the invention a full transfer , TFT switch is provided having a source a drain, a bottom gate and semi-, conductor layer therebetween and a partial top gate overlapping a portion of the drain and 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 January 19, 1995 and granted March 18, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 19, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 19, 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.