Portable wireless device
CA 2321777 A1 · Owner: Endo, Tsutomu · Inventors: Endo, Tsutomu; Fukasawa, Toru; Chiba, Isamu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In operation of a portable radio device a second case (3) housing an antenna , (4) is swung out on a hinge (2) to bring the antenna away from a radio case (1), and the antenna (4) is extended. In this manner the antenna (4) is , sufficiently away from the user's head (100) when the user operates the portable radio device for communication.
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 June 29, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 29, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 29, 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.