Transistor amplifier having reduced parasitic oscillations
CA 2376767 C · Owner: Platzker, Aryeh · Inventors: Teeter, Douglas A.; Platzker, Aryeh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A transistor device (12") having a plurality of transistor cells (15"). Each one of the cells has a control electrode (17) for controlling a flow of carriers through a semiconductor. The device (12") has an input node (20"). A plurality of filters (18") are provided. Each one of the filters (18") is coupled between the input node (20") and a corresponding one of the control electrodes (17) of the plurality of transistor cells (15"). In one embodiment of the invention, pairs of the control electrodes (17) are connected to a common region and wherein each one of the filters (18") is coupled between the input node (20") and a corresponding one of the common regions. The semiconductor …
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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 June 9, 2000 and granted August 2, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 9, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 9, 2022.
- 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
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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.