Ultrahigh-frequency switch
CA 1233206 A · Owner: Nec Corporation · Inventors: Kosugi, Yuhei
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ultrahigh frequency switch is disclosed which features a desirable frequency characteristic, significantly short switching time, and small-size construction. Impedance conversion members serving as input and output terminals are connected between a waveguide and an opening and closing switch section. An elongate and flat my able center conductor in a strip-line configuration is driven from the outside to in turn open and close the impedance conversion members, thereby opening and closing the circuit.
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
- Granted February 23, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 23, 2005.
- 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.