Coaxial-waveguide phase shifter
CA 1318370 C · Owner: Savini, Dario · Inventors: Mercurio, Flavio; Forigo, Davide; Figlia, Giuseppe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coaxial waveguide phase shifter consists of a coaxial waveguide section, comprising an external hollow cylindrical conductor and an internal hollow concentric conductor, and an elongated parallel iris structures extending between the conductors. The inner conductor may be cylindrical and the iris structure formed by multiple-spaced parallel irises which may be differently shaped and fixed to the external or to the internal conductor. By making the cross-section of the internal conductor rectangular the iris, structure may be provided by external surfaces of the conductor.
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 May 25, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 25, 2010.
- 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.