Dual-mode satellite/terrestrial mobile communication unit
CA 2253316 A1 · Owner: Kiuchi, Kazuya · Inventors: Nagamachi, Kazuo; Kiuchi, Kazuya; Sasaki, Yoshio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention seeks to provide a dual mode mobile satellite communication unit, which requires low communication cost and very little battery power, does not require always carrying a large unit frame and does not always provide great weight burden on the user. A terrestrial communication portable unit (B) is detachably mounted in the mobile satellite communication unit (A). The mobile satellite communication unit (A) as base unit does not include a key operating section a display section and a speech , transducer section having a microphone and a loudspeaker and utilizes those , mechanically assembled on the portable unit (B) side for keying and other operations. In an …
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 25, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 25, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 2020.
- 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.