High-frequency module
CA 2260453 C · Owner: Iio, Kenichi · Inventors: Fujii, Yasutaka; Sakamoto, Koichi; Yamashita, Sadao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A high-frequency module having a dielectric resonator includes a dielectric sheet; electrode openings formed on each of main surfaces of the sheet to be aligned so as to make the openings a dielectric resonator; a substrate stacked on, the sheet; and lines disposed thereon to couple to the dielectric resonator. One, of the lines is disposed at a position coinciding with the inner side of the opening, substantially along the edge of the opening.
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 January 27, 1999 and granted July 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 27, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 27, 2021.
- 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.