Antenna device
CA 2185863 C · Owner: Endo, Tsutomu · Inventors: Endo, Tsutomu; Matsumoto, Wataru; Takemoto, Makoto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An antenna device comprises a first antenna capable of moving between a storage position where the first antenna is contained within an equipment housing and an extended position where the first antenna is pulled out of the device housing for receiving and/or transmitting a signal. A second antenna is attached to the tip of the first antenna for receiving and/or transmitting a signal when the first antenna assumes the storage position. The rotator rotates the first antenna with respect to the device housing in the extended position.
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 September 18, 1996 and granted May 2, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 18, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 18, 2018.
- 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.