Field effect transistor amplifier
CA 2200279 C · Owner: Nec Corporation · Inventors: Mochizuki, Takuji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a field effect transistor amplifier using a field effect transistor as an amplification device including a coaxial dielectric resonance device inserted between the input terminal of the amplifier and the input terminal of the amplification device and having a .lambda./2 electrical length and a characteristic impedance lower than the input-side impedance from the input terminal of the amplifier to the input terminal of the amplification device.
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 March 18, 1997 and granted February 8, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 18, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 18, 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.