Card-type radio receiver having slot antenna integrated with housing thereof
CA 1316219 C · Owner: Mori, Toshihiro · Inventors: Tsunoda, Kazuyuki; Mori, Toshihiro; Yamashita, Masayoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
6446-449, Abstract, A miniature radio receiver in accordance with the present invention includes a metal plate which forms a part of the housing of the receiver. A conductive plate which is smaller in width than the metal plate is located to face the metal plate. A connecting plate provides electrical connection between the metal plate and the conductive plate. The circuit parts of the receiver are mounted on that portion of the metal plate which does not face the conductive plate. A cover made of an insulating material is fastened to the metal plate in such a manner as to cover the conductive plate and circuit parts. A radio frequency circuit is connected to the semiconductive plate with …
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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 April 13, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 13, 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.