Surface mount type antenna and communication equipment using same
CA 2197589 C · Owner: Okada, Ken · Inventors: Kawahata, Kazunari; Okada, Ken
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A current-inducing-type surface-mount-type antenna which is short in length and thin in thickness and which can be formed into a small size and communication equipment having the same mounted therein. A radiation electrode substantially in the shape of a letter L or a sideways U and a power supply electrode are formed on the surface of a base made of a dielectric or a magnetic substance with a gap therebetween. A short-circuit end of the radiation electrode and the power supply electrode are connected to a grounding terminal and a power supply terminal respectively, which are formed on an end surface of the base.
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 February 14, 1997 and granted April 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 14, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 14, 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.